Black and White Classic Houndstooth Dog Harness Coat with Leash (S) We've continued the Quality with Double Box Stitch Re-enforced D-Rings attachments. Each Coat comes with a Matching Leash Harness Style Coat with Velcro Neck and Chest Closures. SIZE SMALL (Chest 12"-15") IMPORTANT: Measure the CHEST only, just behind the front legs. If your dog is on the borderline between sizes, always GO DOWN to the lower size, not up.