Puppy Collar Harness Leash Set: Structure, Specifications, and Common Industry Applications

Types of Collar, Harness, and Leash Sets for Puppies

Choosing the right collar, harness, and leash set is essential for your puppy’s comfort, safety, and training success. With a variety of materials and designs available, each set offers unique benefits tailored to different needs—whether you're prioritizing durability, comfort, style, or breathability. Below is a detailed breakdown of the most popular types of puppy gear sets on the market today.

Nylon Collar, Harness & Leash Set

A classic choice for puppy owners, nylon sets are known for their strength, flexibility, and affordability. These sets are easy to clean, lightweight, and come in a wide range of colors and patterns, making them ideal for personalization. Many include reflective stitching or trim, enhancing visibility during evening walks. The sturdy construction makes nylon leashes excellent for managing energetic puppies during training.

Advantages

• Durable and resistant to wear
• Easy to clean and maintain
• Available in many colors and patterns
• Often includes reflective elements for night safety
• Budget-friendly option for first-time owners

Limitations

• Can retain moisture and odor if not dried properly
• May cause chafing if too tight or poorly padded
• Less breathable than mesh alternatives

Best for: Everyday use, training, and general-purpose walks; ideal for puppy supplies buyers seeking reliable, stylish, and affordable gear.

Steel & PVC Collar and Leash Set

Designed for strength and resilience, steel-reinforced sets with PVC coating offer unmatched durability. The metal core provides resistance to chewing and pulling, while the PVC layer ensures a smooth, rust-resistant surface that’s gentle on your puppy’s skin. These sets are particularly suited for larger or more powerful breeds that require firm control during walks.

Advantages

• Extremely strong and chew-resistant
• Resists rust and corrosion thanks to PVC coating
• Ideal for powerful or large-breed puppies
• Long-lasting with proper care

Limitations

• Heavier than fabric options
• Less comfortable for small or sensitive puppies
• Limited style and color options
• May feel cold in winter or hot in summer

Best for: Strong or active puppies, outdoor adventures, and owners needing maximum control and durability.

Rosa Harness & Matching Set

Adored for their charming appearance, Rosa harness sets combine vibrant colors with functional design. These harnesses distribute pressure evenly across the chest and shoulders, reducing strain on the puppy’s neck—especially important during early training. The easy-on/easy-off design (often with quick-snap buckles) makes them a favorite among pet parents of small or fussy puppies. Most sets include a matching collar and leash for a coordinated, stylish look.

Advantages

• Eye-catching colors and floral patterns
• Gentle on delicate puppy skin
• Reduces neck strain with front-clip options
• Simple to put on and adjust

Limitations

• May not be suitable for heavy pullers
• Less durable than nylon or leather
• Potential for fabric fading over time

Best for: Small breeds, fashion-conscious owners, and puppies in leash training who benefit from gentle, pressure-free control.

Neoprene & Nylon Mesh Set

Engineered for comfort and airflow, this breathable combination is perfect for warm weather or active puppies. The nylon mesh allows air circulation to prevent overheating, while neoprene padding adds cushioning at pressure points—ideal for long walks or sensitive skin. Many models feature reflective strips for nighttime safety, and the soft texture minimizes chafing and irritation.

Advantages

• Highly breathable and moisture-wicking
• Soft, padded comfort with neoprene lining
• Reduces risk of overheating during play or walks
• Reflective details enhance visibility
• Lightweight and flexible fit

Limitations

• May stretch over time with heavy use
• Requires gentle cleaning to preserve padding
• Not as strong as solid nylon or metal options

Best for: Hot climates, energetic puppies, and owners seeking a comfortable puppy leash collar harness set that supports healthy skin and mobility.

Leather Collar, Harness & Leash Set

Sleek, timeless, and built to last, leather sets exude elegance and durability. High-quality leather softens with age, molding to your puppy’s shape for a custom, comfortable fit. While often more expensive, leather accessories are prized for their premium look and longevity. Many sets include a simple leather harness for better control during training sessions, making them both functional and sophisticated.

Advantages

• Premium, luxurious appearance
• Becomes softer and more comfortable over time
• Highly durable with proper maintenance
• Resistant to odors and bacteria
• Classic style that never goes out of fashion

Limitations

• Higher initial cost
• Requires regular conditioning to prevent cracking
• Not fully waterproof; can be damaged by prolonged moisture
• Less breathable than mesh or neoprene

Best for: Owners who value tradition, elegance, and long-term investment in high-quality pet accessories.

Expert Tip: Always measure your puppy’s neck and chest before purchasing a set. Puppies grow quickly, so choose an adjustable harness that can accommodate growth while ensuring a snug, safe fit. Avoid overly tight gear to prevent chafing or breathing restrictions.

Key Features of Puppy Collar, Harness, and Leash Sets: Safety, Comfort & Style

Puppy collar, harness, and leash sets are essential tools for new pet owners, combining safety, comfort, and convenience in one cohesive package. As puppies grow rapidly and explore their surroundings with boundless energy, the right gear plays a crucial role in ensuring secure walks, promoting proper training, and enhancing the bond between pet and owner. Below is a detailed breakdown of the most important features that make these sets both functional and appealing to modern consumers.

1. Adjustable Collars and Harnesses for Growing Puppies

One of the most valuable features of high-quality puppy sets is their adjustability. Puppies grow quickly—sometimes gaining several pounds in just a few weeks—so static collars or harnesses quickly become too tight or loose. Adjustable designs allow for a custom fit at every stage of development, ensuring comfort and security without the need for frequent replacements.

Adjustable collars help discourage pulling by distributing pressure evenly, while harnesses reduce strain on the puppy’s neck and spine. Many harnesses feature multiple adjustment points—around the chest, neck, and girth—for a truly snug yet breathable fit. This versatility makes adjustable sets ideal for breeders, trainers, and retailers who serve a wide range of puppy sizes and breeds.

2. Comprehensive Safety Features for Peace of Mind

Safety is paramount when walking an energetic puppy, especially in low-light conditions or unpredictable environments. Modern collar and harness sets often include multiple integrated safety enhancements:

• Reflective Stitching or Trim: Enhances visibility during early morning or evening walks, helping drivers and cyclists spot your puppy from a distance.
• Breakaway or Safety Buckles: Designed to release under excessive force, preventing choking or injury if the leash snags on an object.
• Secure Locking Mechanisms: Prevent accidental unclasping, which is common with playful or excitable puppies.
• Top-Handle Harness Options: Some harnesses include a handle for added control, useful when lifting your puppy over obstacles or managing sudden movements.

These features are especially appreciated by urban pet owners, families with young children, and those living near roads or busy areas.

3. User-Friendly Design for Effortless Daily Use

Puppy owners—especially first-time pet parents—value simplicity and efficiency. A well-designed collar, harness, and leash set should be easy to put on and take off, even with a wiggly puppy. Key usability features include:

• Quick-Release Buckles: Allow for fast and secure fastening without complicated threading.
• Step-In or Vest-Style Harnesses: Reduce stress during dressing by eliminating the need to pull the harness over the puppy’s head.
• Soft-Grip Leash Handles: Provide comfort during long walks and reduce hand fatigue, often featuring padded or ergonomic designs.
• One-Click Snap Collars: Enable quick attachment and removal, saving time during daily routines.

These thoughtful design elements make the walking experience more enjoyable and less stressful for both puppy and owner.

4. Stylish Designs and Vibrant Color Options

Today’s pet owners view their puppies as family members and often want accessories that reflect their personal style. Puppy sets come in a wide variety of colors, patterns, and materials—from classic solids and polka dots to floral prints and neon hues. Matching sets allow owners to coordinate their puppy’s look with their own wardrobe or seasonal themes.

Beyond aesthetics, color variety also serves a practical purpose: bright or unique colors make it easier to spot a puppy in a crowd or during outdoor play. Retailers can leverage this appeal by offering themed collections (e.g., holiday editions, seasonal palettes) or customizable options to attract fashion-conscious customers.

5. Durable, Lightweight Materials for Comfort and Longevity

The materials used in puppy sets are carefully selected to balance strength, comfort, and weight. Since puppies are small and still developing, heavy gear can cause discomfort or even affect posture. Common high-performance materials include:

Nylon

Widely used for its durability, resistance to moisture, and ease of cleaning. Lightweight yet strong, nylon is ideal for collars, harnesses, and leashes that endure daily use.

Neoprene

Offers a soft, padded feel that prevents chafing and is gentle on sensitive skin. Often used in harness padding for added comfort during extended wear.

Genuine or Faux Leather

Provides a premium look and long-lasting performance. Faux leather offers a cruelty-free alternative with similar durability and style.

Mesh & Breathable Fabrics

Help regulate temperature and prevent overheating, especially in warm climates or during active play.

High-quality materials not only enhance comfort but also extend the product’s lifespan, making them a smart investment for pet owners. Many sets are machine-washable or easy to wipe clean, adding to their practicality.

Important: Always ensure a proper fit—two fingers should fit comfortably between the collar or harness and your puppy’s body. Avoid overly tight gear that restricts movement or breathing. Regularly inspect buckles, stitching, and hardware for signs of wear, especially as puppies chew and play. Choosing the right set now can support healthy development, build positive walking habits, and keep your puppy safe during their most curious and active stages.

How to Choose a Puppy Collar, Harness, and Leash Set

Selecting the right collar, harness, and leash set is essential for your puppy’s comfort, safety, and training success. A well-matched set not only makes walks enjoyable but also supports proper behavior development and prevents injury. Whether you're a new pet parent or shopping for a client, understanding the key selection factors ensures a perfect fit for every puppy’s unique needs.

Fit and Sizing

Proper fit is the foundation of a safe and comfortable walking experience. Puppies grow rapidly, so choosing adjustable gear that accommodates growth is crucial. A collar should sit snugly but allow room for two fingers to fit between the collar and the puppy’s neck. This prevents choking while ensuring it won’t slip off during play.

• Neck Measurement: Use a soft tape measure behind the ears and just above the shoulders—the widest part of the puppy’s neck.
• Harness Fit: Should be secure without restricting movement; check that you can fit two fingers between the straps and the puppy’s body.
• Adjustability: Look for multiple adjustment points on both collar and harness to extend the product’s usable life.
• Sizing Charts: Reputable brands provide detailed size guides based on breed, weight, and neck/girth measurements—always consult them before purchasing.

Pro Tip: For fast-growing breeds like Labradors or Shepherds, opt for growth-friendly harnesses with front and back leash attachment options.

Purpose and Activity Level

The puppy’s energy level and daily routine should guide your choice. High-energy breeds such as Border Collies or Jack Russells benefit from durable, supportive gear, while smaller, calmer breeds like Cavalier King Charles Spaniels may do well with lighter sets.

• Active Puppies: Choose reinforced harnesses with padded chest plates and heavy-duty stitching to handle pulling and excitement.
• Training Focus: Consider no-pull harnesses with front leash clips that gently guide the puppy’s movement and discourage leash pulling.
• Urban Walks: Reflective trim and traffic-handling leashes improve visibility and control in busy environments.
• Hiking or Trail Use: All-terrain leashes with shock absorption and weather-resistant materials offer added safety and comfort.

Key Insight: Matching gear to lifestyle prevents frustration and builds positive walking habits early.

Material and Comfort

Puppies have sensitive skin and are still developing physically, so material choice directly impacts comfort and long-term usability. Soft, breathable, and hypoallergenic materials reduce the risk of chafing, rashes, and overheating.

• Nylon: Lightweight, durable, and easy to clean—ideal for everyday use. Look for mesh-lined or padded versions for added comfort.
• Neoprene: Offers excellent cushioning and moisture resistance, perfect for puppies prone to sweating or skin irritation.
• Leather: Naturally strong and long-lasting, but requires a break-in period and regular conditioning. Best for older puppies or those with stable neck sizes.
• Eco-Friendly Fabrics: Recycled polyester or organic cotton blends are emerging as sustainable, soft alternatives.

Comfort Check: Avoid rough seams, stiff buckles, or non-breathable materials that can cause discomfort during extended wear.

Leash Length and Type

The right leash enhances control, safety, and training effectiveness. Different lengths and styles serve distinct purposes, from structured training to free exploration.

• 4–6 Foot Standard Leash: Ideal for city walks, training, and maintaining close control. Offers balance between freedom and safety.
• Retractable Leashes: Allow variable length (up to 16 feet), but are not recommended for puppies due to risk of burns, tangling, or inconsistent tension.
• Hands-Free Leashes: Attach to your waist, freeing your hands—great for jogging or walking multiple dogs.
• Multi-Length Leashes: Convertible styles (e.g., 4ft/6ft) offer flexibility for different environments and training stages.
• Double Dog Leashes: Useful for households with multiple puppies or when socializing with other dogs.

Expert Advice: Start with a 4-foot nylon leash for training—consistent feedback helps puppies learn boundaries faster.

Functionality and Safety Features

Safety should never be compromised. Modern puppy gear includes smart design elements that enhance security, ease of use, and visibility.

• Reflective Stitching or Trim: Increases visibility during early morning or evening walks—critical for urban or roadside safety.
• Quick-Release Buckles: Allow fast removal in emergencies or during potty breaks without fumbling.
• Double-Clip Harnesses: Feature both front and back attachment points for versatility in training and walking.
• Breakaway Collars: Designed to release if snagged, reducing choking hazards—especially important for unsupervised indoor use.
• Reinforced Stitching and D-Rings: Prevent tearing and ensure secure leash connections under stress.

Safety First: Always inspect gear weekly for wear, fraying, or loose hardware—replace immediately if damaged.

Breed and Growth Considerations

Not all puppies grow at the same rate or have the same physical structure. Brachycephalic breeds (e.g., Pugs, Bulldogs) are prone to breathing issues and should avoid neck pressure—always use a harness. Long-backed breeds (e.g., Dachshunds) need spine support and minimal pulling.

• Toy Breeds (Chihuahua, Pomeranian): Require ultra-lightweight sets with narrow straps to avoid overwhelming their small frames.
• Larger Breeds (German Shepherd, Golden Retriever): Benefit from structured harnesses with handle options for assistance or control.
• Puppy Growth Spurts: Expect to replace or adjust gear every 2–3 months during the first year.
• Vet-Recommended Gear: Some veterinarians recommend specific harness types to prevent tracheal collapse or joint strain.

Smart Strategy: Invest in modular systems that allow replacement of just the harness or collar as your puppy grows.

Professional Recommendation: For most puppies, a well-padded, adjustable nylon harness with a matching 4-foot leash and collar set offers the best balance of comfort, safety, and value. Prioritize sets with reflective elements and secure buckles. Avoid decorative or fashion-only products that sacrifice function for style. When in doubt, consult a professional trainer or veterinarian for breed-specific advice.

Additional Tips for Success

• Introduce Gradually: Let your puppy wear the collar and harness indoors first to build positive associations.
• Monitor Skin Health: Check for redness, hair loss, or sores under straps after each use, especially during growth phases.
• Washability: Choose machine-washable or easy-clean materials to maintain hygiene and odor control.
• Color and Visibility: Bright or neon colors increase visibility and make identification easier in public spaces.
• Warranty and Brand Support: Reputable brands often offer replacements for outgrown or defective items—check return policies.

Maintenance and Use Guide for Puppy Collar, Harness, and Leash Set

Proper care and usage of your puppy's collar, harness, and leash set are essential for your pet's safety, comfort, and long-term durability of the gear. Whether you're a new puppy owner or preparing to train and socialize your young dog, this comprehensive guide provides detailed maintenance practices and real-world scenarios to help you make the most of your pet’s walking equipment. Follow these expert-recommended steps to ensure optimal performance, hygiene, and safety.

Safety Note: Always supervise your puppy during walks and inspect all gear before each use. Ill-fitting or damaged equipment can lead to injury, escape, or discomfort. Never leave collars or harnesses on unsupervised puppies for extended periods.

1. Routine Cleaning for Longevity and Hygiene

Regular cleaning keeps your puppy’s gear fresh, odor-free, and functional. Different materials require specific care to prevent deterioration:

• Nylon and Fabric Items: Wipe down with a damp cloth and mild soap. For deeper cleaning, hand wash in lukewarm water (never hot, as it may cause shrinking or weakening of fibers). Air dry completely before storing or reusing.
• Leather Products: Use a dedicated leather cleaner and conditioner to preserve suppleness and prevent cracking. Avoid soaking leather in water, as it can warp or stiffen when dried improperly.
• Hardware (Buckles, D-Rings): Clean metal components with a soft brush to remove dirt and check for rust or corrosion, especially after walks in wet or salty conditions.

Frequency: Clean the set every 2–4 weeks, or more often if your puppy frequently walks in mud, rain, or sand. Immediate cleaning after exposure to harsh elements helps prevent long-term damage.

Pro Tip: Remove the leash from the harness and collar during cleaning to ensure thorough drying and prevent trapped moisture, which can lead to mold or mildew.

2. Regular Inspection for Wear and Tear

Even high-quality gear degrades over time. Frequent inspections help catch problems early and avoid dangerous failures during walks:

• Check for fraying on straps, especially near stitching or stress points.
• Look for cracks or splits in leather or plastic components.
• Examine metal parts for rust, bending, or loose connections.
• Ensure buckles and clips function smoothly and lock securely.

Best Practice: Perform a quick inspection before every walk. A 30-second check can prevent a broken leash or escaped puppy. Replace any item showing significant wear—don’t wait until it fails.

3. Proper Storage to Preserve Quality

How you store your puppy’s gear significantly impacts its lifespan:

• Store in a cool, dry place away from direct sunlight, which can fade colors and weaken materials like nylon and leather.
• Avoid damp basements or hot garages where temperature fluctuations and humidity accelerate wear.
• Use a designated storage bag or container to protect items from dust, pet hair, and accidental chewing by other pets.
• If not used daily, loosely coil the leash and hang the harness and collar to prevent permanent creasing or deformation.

Proper storage not only extends product life but also ensures your gear is clean and ready when needed—ideal for consistent training routines.

4. Ensuring Proper Fit for Comfort and Safety

A well-fitted collar and harness are crucial for your puppy’s comfort and control:

• Collar Fit: Should sit snugly but allow two fingers to fit comfortably beneath it. Too tight can restrict breathing; too loose risks escape.
• Harness Fit: Adjust all straps so the harness lies flat without rubbing. The chest strap should be high enough to avoid armpit chafing, and the neck opening should prevent slipping over the head.
• Monitor Growth: Puppies grow rapidly. Reassess fit every 2–4 weeks and adjust or upgrade sizes as needed.

An improperly fitted harness can restrict movement or cause skin irritation, while a loose collar may allow your puppy to back out during a walk.

Expert Advice: Use a soft measuring tape to track your puppy’s neck, chest girth, and body length monthly. This helps anticipate when a size upgrade is needed and ensures a seamless transition.

5. Real-World Scenario: Training and Socialization

The collar, harness, and leash set is a foundational tool in early puppy development. Here’s how to use it effectively during training:

• Loose-Leash Walking: A harness reduces strain on your puppy’s neck and discourages pulling. Use positive reinforcement (treats, praise) when your puppy walks beside you without tension.
• Socialization: Take your puppy on short, controlled walks to parks, sidewalks, or pet-friendly stores. The leash allows safe exposure to new sights, sounds, and smells—key for building confidence.
• Training Classes: Many puppy obedience courses require a harness and leash. A well-maintained, properly fitted set ensures your puppy can focus on learning without discomfort.
• Distraction Management: Use the leash to gently guide your puppy away from hazards (e.g., traffic, other animals) while teaching impulse control.

Consistent use of properly maintained gear builds good habits early, making your puppy a well-behaved companion for years to come.

Additional Recommendations

• Keep a backup collar and harness for emergencies or when washing the primary set.
• Consider reflective or light-up gear for evening walks to improve visibility.
• Introduce the leash gradually with short indoor sessions to reduce fear or resistance.
• Label your puppy’s collar with an ID tag containing your contact information.
• Rotate between multiple harnesses if used daily to extend the life of each.

By following these maintenance and usage guidelines, you ensure your puppy stays safe, comfortable, and well-trained. A little care goes a long way in building a positive walking experience and fostering a strong bond between you and your furry friend. Remember: well-maintained gear supports healthy development and makes every adventure together more enjoyable.

Frequently Asked Questions About Puppy Collars, Harnesses, and Leashes

When choosing between a collar and a harness for your puppy, it's important to consider both comfort and functionality. Collars are ideal for everyday wear, especially for holding ID tags and providing a consistent point of identification. However, harnesses are generally recommended for walking and training because they distribute pressure more evenly across the puppy’s body, reducing strain on the neck and trachea.

• Safety First: Puppies that tend to pull on the leash benefit greatly from a harness, which prevents choking and potential injury to delicate neck structures.
• Breeds with Breathing Issues: Brachycephalic breeds like Bulldogs, Pugs, and Shih Tzus are especially prone to respiratory problems—using a harness instead of a collar is strongly advised.
• Training Advantage: A well-fitted harness offers better control during outdoor training sessions, making it easier to guide your puppy without causing discomfort.
• Combined Use: Many pet owners use both—a collar for ID tags and a harness for walks—ensuring safety, identification, and effective training.

Ultimately, while collars are practical for daily wear, harnesses are superior for active use and training, particularly for energetic or small-breed puppies.

The material of your puppy’s collar plays a crucial role in comfort, durability, and safety. The best collars are made from lightweight, soft, yet durable materials that can withstand chewing and regular use without irritating your puppy’s skin.

• Nylon: The most common choice due to its strength, affordability, and wide range of colors and patterns. It’s water-resistant and easy to clean, though lower-quality versions may fray over time.
• Neoprene: Offers a soft, padded feel that’s gentle on the skin and ideal for sensitive puppies. It’s also moisture-resistant, making it great for active or outdoor-loving pups.
• Leather: Durable and stylish, leather collars are long-lasting and resistant to chewing. However, they require more maintenance and may not be suitable for puppies that spend a lot of time in wet environments.
• Breakaway Features: For safety, consider collars with breakaway clasps, especially if your puppy spends time unsupervised. These release under pressure to prevent choking hazards.

Always ensure the collar has a secure buckle or snap and is adjustable to grow with your puppy. Reflective stitching is also a valuable feature for visibility during evening walks.

Pet gear should be replaced not on a fixed schedule, but based on visible signs of wear and tear, changes in your puppy’s size, and usage intensity. Regular inspection is key to ensuring your puppy’s safety during walks and play.

• Signs of Wear: Look for fraying threads, cracked stitching, weakened buckles, fading color (which may indicate UV damage), or stretched material. Any of these can compromise the integrity of the equipment.
• Growth Spurts: Puppies grow rapidly in their first year. A collar or harness that fits at 8 weeks may be too tight by 12 weeks. Check fit weekly and adjust or replace as needed.
• Usage Frequency: Daily use, rough play, or exposure to water, dirt, or extreme temperatures accelerates wear. Gear used for hiking or swimming may need replacement every 6–12 months.
• Environmental Factors: Prolonged sun exposure can weaken nylon and leather, while moisture can lead to mold or metal corrosion on clips and D-rings.

As a general rule, inspect all puppy gear at least once a month. Replace items immediately if any component shows damage. Investing in high-quality, durable products can extend lifespan and improve safety.

No, it is not recommended to leave a harness on your puppy continuously. While harnesses are safe for walking and training, extended wear can lead to skin irritation, chafing, or even sores—especially if the harness becomes wet or soiled.

• Skin Health: Constant friction and trapped moisture under the harness can cause rashes or infections, particularly in areas with limited airflow like the armpits.
• Chewing and Damage: Puppies may chew at the harness if left on too long, leading to ingestion of fabric or hardware, which poses a serious health risk.
• Proper Use: Harnesses should be put on only during walks, training sessions, or supervised outdoor activities, then removed afterward.
• Alternative for Constant Wear: A soft, well-fitted collar is a better option for 24/7 wear, especially if it holds ID tags. Just ensure it’s not too tight and allows room for two fingers between the collar and the puppy’s neck.

Always check your puppy’s skin under the harness after each use for redness or irritation, and clean the harness regularly to maintain hygiene.

Choosing the correct size is essential for both comfort and safety. Ill-fitting gear can cause discomfort, restrict movement, or even allow your puppy to escape.

• Collar Sizing: Measure the puppy’s neck with a soft tape measure, just above the shoulders. Add about ½ to 1 inch for growth and comfort. The collar should be snug enough to stay in place but loose enough to fit two fingers underneath.
• Harness Sizing: Measure the girth (the widest part of the chest, just behind the front legs). This is the most critical measurement for a secure fit. Some harnesses also require neck measurement for front-clip styles.
• Leash Length: Standard leashes are 4–6 feet long. Shorter leashes (4 ft) offer better control for training, while longer ones (6 ft) allow more exploration in safe areas. Retractable leashes can be useful but require supervision and are not ideal for puppies still learning leash manners.
• Adjustability: Choose collars and harnesses with multiple adjustment points to accommodate growth. Many brands provide detailed sizing charts—always refer to these and double-check measurements before purchasing.

When in doubt, consult your veterinarian or a professional trainer. Many pet stores also offer fitting assistance to help you select the right size for your growing puppy.