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