Answered by GWL, February 6, 2011 at 02:55:15 PM EST.
A: Measure your dog while standing up on all fours around his rear girth, in front of his back legs. The large size fits dogs with a rear girth from 18 to 22" around.
- Click the arrow or text to reveal answers.
- Customer service representatives.
- Verified purchasers of this product.