How do I find the correct size for my dog?

How to Measure Your Dog:

What you’ll need: a soft tape measure (or string + ruler), a pen, and your dog standing naturally.

  1. Neck circumference (for collars & harnesses)

  • Wrap the tape around the base of the neck where the collar sits.

  • Keep it snug but not tight and use the two-finger rule (you should fit two fingers comfortably under the tape).

  • Note the measurement. If between sizes, choose the size where your dog sits near the middle of the collar’s adjustment range.

  1. Chest girth (for harness fit)

  • Measure the deepest part of the chest, just behind the front legs.

  • Keep the tape level all the way around. Record the number

  • Between sizes? Go up one size for growing pups or very fluffy coats; otherwise choose the option where your dog sits in the middle of the adjustment.

Pro Tips

  • Measure twice to be sure.

  • For long-haired or double-coated breeds, add 0.5–1.5 cm if you like a looser fit.

  • Weight is a helpful guide, but measurements are most accurate.

  • Replace any collar that fits on the very last hole—your dog has outgrown it.

Safety Check

  • After fitting, ensure you can slide two fingers under the collar.

  • Check weekly for puppies (they grow fast!) and after grooming.

STANDARD ADJUSTABLE DOG COLLARS SIZE GUIDE

SIZE MIN LENGTH MAX LENGTH THICKNESS EXAMPLE BREEDS EXAMPLE WEIGHT
PUPPY 6" / 15cm 10" / 25cm 10mm Puppy, Toy Poodle, Mini Dax >2.5KG
XS 8" / 20cm 11" / 28cm 15mm Mini Poodle, Dax, Chihuahua 2-7KG
S 10" / 26cm 14" / 36cm 20mm Jack Russell, Border Terrrier, Spaniel 6-12KG
M 14" / 36cm 18" / 46cm 25mm Beagle, Collie, Labradoodle, Staffie 12-22KG
L 18" / 46cm 22" / 56cm 25mm Labrador, Vizla, Golden Retriever 22-32KG
XL 22" / 56cm 26" / 66cm 25mm St Bernard, Cane Corso 32KG +

 

SOFT DOG HARNESS SIZE GUIDE

SIZE NECK MIN NECK MAX CHEST MIN CHEST MAX EXAMPLE BREEDS EXAMPLE WEIGHT
XS 8" / 20cm 11" / 28cm 13" / 33cm 18" / 46cm Puppy, Mini Dax, Chihuahua >4KG
S 10" / 26cm 14" / 36cm 16" / 41cm 22" / 56cm Mini Poodle, Dax, Cavapoo 4-9KG
M 14" / 36cm 18" / 46cm 18" / 46cm 26" / 66cm Cockapoo, Spaniel, Frenchie 10-19KG
L 18" / 46cm 22" / 56cm 24" / 61cm 32" / 81cm Beagle, Labradoodle, Staffie 20-28KG

 

STRAP DOG HARNESS SIZE GUIDE

SIZE NECK MIN NECK MAX CHEST MIN CHEST MAX EXAMPLE BREEDS EXAMPLE WEIGHT
XS 8" / 20cm 11" / 28cm 14" / 36cm 18" / 46cm Toy Poodle, Mini Dax, Chihuahua >5KG
S 10" / 26cm 15" / 38cm 16" / 41cm 22" / 56cm Mini Poodle, Dax, Cavapoo 6-11KG
M 14" / 36cm 19" / 48cm 20" / 51cm 28" / 71cm Cockapoo, Spaniel Staffie 12-24KG
L 18" / 46cm 22" / 56cm 26" / 66cm 32" / 81cm Beagle, Collie, Labradoodle 25-35KG

 

If you need any further help with sizing then please email info@barkleyandfetch.co.uk or contact us through the WhatsApp button below x