Sizing for Harnesses and Jackets

How do I know what size to order?

Our sizing is based on a girth measurement around the widest part of your dog’s rib cage. For a quick guide to measuring, check out this video.

My dog is in between sizes. Which size should I choose?

Additional sizing information can be found on each product page by clicking the Size Chart button under the sizing dropdown menu. This will provide you with additional product information, like recommendations for sizing up or down when between sizes. Sizing recommendations are based on each product's design and intended fit, and may differ from product to product.

Aug 22, 2025