Helps dogs stay cool in the heat: dog cooling coat is designed to keep your dog cool when the temperature rises; cools back of your dog’s neck and chest. Light Color and reflective material: cooling Vest comes in nice light Color and reflective material that deflects heat from the sun to support cooling How IT works: cooling coat for dogs uses prolonged evaporation technology; simply wet cooling coat with Cool water; evaporation occurs when the water absorbs heat from a surface that turns into gas