Puppia Authentic Atticus Vest Harness B, Medium, Red Vest Harness (Step-In Harness) with Solid Background and Gingham Piping Anchor Embroidery and Hook and Loop Closure with Quick-Release Buckle Matching Leash Available (sold separately) Available in Red, Navy and Pink in Sizes Ranging from Small to Large Size: Medium - 10.8" Neck, 14.9" Chest