ICE BEAR Dog Cool Coat The latest Microperforation technology offers the best cooling garments available for dogs today. It is a comfortable and safe way to combat overheating, reduce fatigue, prevent heat stress + alleviate dehydration. Simply moisten the coat with cold water. It is made with a unique surface layer with micro-perforations to retain moisture for hours longer than traditional cool coats. ICEBEAR Cool Coat has micro-perforations built in, so your dog can stay cool on the go!