To keep your dog safe and comfortable, it’s important to choose the right size collar and harness. Grab a soft measuring tape (or a piece of string and a ruler) and follow these simple steps before you order.
Measure for a Collar – Neck Circumference
Make sure your dog is standing in a natural, relaxed position.
Wrap the tape around the base of the neck, where the collar will sit (usually the thickest part).
Keep the tape snug but not tight – you don’t want to pinch the skin.
Add 2–3 cm for comfort and fur, especially for fluffy or growing puppies.
Compare your final number with our collar size chart to choose the best size.
Measure for a Harness – Chest Girth & Neck
Chest girth (most important): Wrap the tape around the widest part of the chest, just behind the front legs. Keep the tape level and snug against the fur.
Neck (for harnesses that sit higher on the chest): Measure around the base of the neck where the front of the harness will sit.
Add 2–3 cm to each measurement so your dog can move, breathe, and play comfortably.
Use both measurements to match your dog to our harness size chart.
Fit tip: You should be able to slide two fingers comfortably between your dog and their collar or harness. If it’s tighter than that, go up a size. If it spins or slips off the shoulders, it’s too loose.
Size Guide
Measure around the base of your dog’s neck where the collar will sit and add 2–3 cm for comfort. Choose the size where your final number sits roughly in the middle of the range for the best fit. If your puppy is still growing, consider the next size up so you can adjust as they grow.
Size
Webbing width
Neck
Typical breeds & weight*
XS
1.5 cm
20–30 cm
Tiny breeds & small puppies (approx. 2–5 kg): Chihuahua, Toy Poodle, Yorkshire Terrier, very young small-breed puppies.
S
1.5 cm
25–38 cm
Small breeds (approx. 4–9 kg): Cavoodle, Maltese, Mini Dachshund, Pug, French Bulldog puppies.
M
2.0 cm
32–48 cm
Medium & sturdy small dogs (approx. 8–18 kg): Cocker Spaniel, Beagle, Kelpie, Border Collie, Staffy.
Fit check: You should be able to fit two fingers between the collar and your dog’s neck. If it’s tighter than that, size up. If the collar can slip over the head when fully tightened, size down.
Leash & Accessories
These items come in one size. Use the measurements below to check they suit your dog’s proportions and your walking style.
Product
Size
Measurements
Notes
Leash
OS
2.0 × 150 cm
Comfortable everyday length for walks and training.
Bow tie
OS
6 × 10 cm
Best suited to small and medium dogs.
Sailor bow tie
OS
10 × 10 cm
Statement piece for small to medium dogs.
Treat pouch
OS
12.5 × 14 cm
Room for treats, clicker and small essentials.
Two pockets treat pouch
OS
10 × 12 cm
Separate pockets to keep treats and keys/phone apart.
Poo bag holder
OS
Ø 4.5 × 4 cm
Fits a standard roll of poo bags.
*Breed and weight examples are a general guide only – always measure your dog for the most accurate fit.
Form and function.
As professional dog trainers our products are tried, tested and curated for the very best for your dog.
Professional Advice
Our team is a dog-loving crew with professional pet dog training qualifications.
Designed to Enrich
We carefully choose our products at Teddy Dogwear to Enrich your Dog's Life.
