The product description 1. Help your dog stay cool in the heat: cooling dog coats are designed to keep your dog cool when the temperature rises; Cool your dog’s neck and chest. 2. Lightweight and reflective materials: Cooling vests have good lightweight and reflective materials that deflect heat from the sun to promote cooling 3. Working Principle: The dog cooling coat adopts long-term evaporation technology; Simply cool the liner by wetting it with cold water; Evaporation occurs when water absorbs heat from the surface of a gas 4. Tips: Leave a two-finger space when measuring your pet’s neck for comfort