PUPTECK Reflective Lightweight Red Cool Dog Mesh Harness Service Dog in Training Patches Size M: Chest girth:13.8-16.9 , confirm the size before you commit to buy Reflective strip give your dog more safety when it go out at night, and you won't loose your dog Come with 4 free removable reflective patches, include two SERVICE DOG, and two IN TRAINING Made with strong mesh material, not easy to tear, and let your dog keep cool and more comfortable during the hot day Adjustable chest and girth straps for custom fit; Side quick release buckle makes it easy to put on and take off