Pinkaholic New York Medium Checkered Snugfit Harness, Navy Holiday Themed Checkered Pattern in a New Snugfit Design Improved Chest Belt and Buckle Position Prevents Chaffing 100-percent Acrylic (Shell); 100-percent Polyester (Lining) Available in Red and Navy in Sizes Ranging from Small to Large PLEASE REFER TO SIZE IMAGE-Size Spec: Medium-Neck (12.6"), Chest (15.8" - 20.5")