Chest Plate Dog Harness. This unique harness features an EVA foam rubber chest plate that will form to your dog's chest for an ergonomic fit. Chest plate evenly disperses the pressure of a harness providing comfort for your dog and control for you! This harness also doubles as a car restraint! Features: - Adjustable and easy to fit - Uses reflective stitching for enhanced visablitly at night - Swiveling seat belt restraint included for automobile travel - Rust proof welded D-ring for leash attachment Sizing: <b>XS</b>: Weight: 7-12 lbs I Neck: 11-18 in. I Girth: 12-19 in. <b>S</b>: Weight: 12-23 lbs I Neck: 14-22 in. I Girth: 15-24 in. <b>M</b>: Weight: 23-42 lbs I Neck: 16-27 in. I Girth: 18-29 in. <b>L</b>: Weight: 42-77 lbs I Neck: 18-31 in. I Girth: 19-33 in. <b>XL</b>: Weight: 77+ lbs I Neck: 21-36 in. I Girth: 22-38 in.