Dog Collar & Harness Size Guide

We Assist You in Choosing the Ideal Size for Your Dog

Size guide

Selecting the perfect size for your dog is effortless with our step-by-step guide.

For personalized assistance or any questions, please reach out to us at support@thelillebjorn.com. We are dedicated to helping you make the best choice.

How to Find the Right Size

Collar

Measure snugly around the middle of your dog's neck with a tape measure, without leaving any extra space. Our collars are true to size, so a snug measurement will ensure the best fit.

Collar Sizing Explained: Each collar size reflects its inner circumference range. For example, a size S (27-32 cm) means the collar’s inner circumference fits necks measured between 27-32 cm. Based on this, you can decide whether you want a looser or tighter fit, as the inner circumference of the collar corresponds to your pet’s neck size.

Wide Collars

For larger breeds, we have designed a slightly different collar width ratio for L and XL sizes to ensure more security and comfort.

Size	Neck Circumference (cm)	Neck Circumference (inches)	Collar Width Ratio (cm)	Collar Width Ratio (inches)
XXS	17 - 22	6.7 - 8.7	1.5 : 4.5	0.59 : 1.77
XS	22 - 27	8.7 - 10.6	1.5 : 4.5	0.59 : 1.77
S	27 - 32	10.6 - 12.6	1.5 : 4.5	0.59 : 1.77
M	32 - 37	12.6 - 14.6	1.5 : 4.5	0.59 : 1.77
L	37 - 42	14.6 - 16.5	3 : 4.5	1.18 : 1.77
XL	42 - 47	16.5 - 18.5	3 : 4.5	1.18 : 1.77

Classic Collars

Size	Neck Circumference (cm)	Neck Circumference (inches)
XXS	17 - 22	6.7 - 8.7
XS	22 - 27	8.7 - 10.6
S	27 - 32	10.6 - 12.6
M	32 - 37	12.6 - 14.6
L	37 - 42	14.6 - 16.5
XL	42 - 47	16.5 - 18.5

How to Find the Right Size

Harness

Please measure around your dog's chest using a tape measure.

For small dogs, measure the chest allowing a little extra space for comfort. For larger breeds, a snug fit is recommended, as the leather will naturally stretch and contour to your dog’s chest over time.