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.
Sizing: If the girth measurement is:
- 9 - 13 in (23 - 33 cm) - size: XXXSmall (size available in the Hi & Light Harness only)
- 13 - 17 inches (33 - 43 cm)- size: XXSmall
- 17 - 22 inches (43 - 56 cm) - size: XSmall
- 22 - 27 inches (56 - 69 cm) - size: Small
- 27 - 32 inches (69 - 81 cm) - size: Medium
- 32 - 42 inches (81 - 107 cm) - size: Large/XL
In between sizes? 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.
Sep 8, 2025