Each collar type has its own size chart. Our sizes are unique to our brand. size chartThis chart is meant to be a guide only. Refer to the product descriptions and size charts for the most accurate sizing details. Actual size ranges may vary by up to 1". Please measure your pet prior to ordering and utilize our FREE custom sizing to ensure the best fit and avoid the hassle of returns.

Width Guidelines

A very flexible rule of thumb for choosing width:

  • 3/8" for toy breeds, under 10 lbs
  • 5/8" for small breeds, 10-30 lbs
  • 3/4" for medium breeds, 20-50 lbs
  • 1" for large breeds, 40-100 lbs
  • 1.5" for giant breeds, 100+ lbs

Measuring for a dog collar


Sizing Inconsistencies: We are in the process of modifying all of our collar size ranges and size labels (S, M, L) to be more congruent across styles. You may see inconsistencies between our size chart, descriptions, and available selections while we do this. If in doubt, choose the appropriate length shown (8-13, 14-22, etc) regardless of size label (S, M, L, etc). 

As always, Fox Valley Pet Wear will custom-size your gear to fit your pet for no extra charge! All you need to do is provide measurements with your order.**

** if your measurement and request-details align with one of our standard sizes, we may provide the standard size. We will use our professional opinion or reach out to you with questions.

One more thing about custom sizing...

Keep in mind we cannot add range to one end without sacrificing range from the other. Expect roughly 3" of range for small sizes, 5" for medium sizes, 7" for large sizes, and so on.