Trek Walk Set Size Chart

The size selected for the Trek Walk Set corresponds to the Trek Harness. Measure the widest part of your dog’s chest, directly behind the front legs. Weight can be used as a secondary reference.

Harness Size Recommended Weight Chest Girth
Small 15–30 lb 17–24 in
Medium 25–55 lb 22–31 in
Large 40–75 lb 26–35 in
Extra Large 75–105 lb 31–41 in

How to Measure

Wrap a soft measuring tape around the widest part of your dog’s ribcage, directly behind the front legs. Keep the tape flat and secure without pulling it tightly.

If your dog falls between sizes or is still growing, choose the larger size for a more comfortable and adjustable fit.

Please use the harness measurement when selecting the size of your Trek Walk Set.