Keep Your Drink Chilled with Hook & Tackle’s Lightweight & Portable Temperature Regulated Koolies. Product Details Description Our Beer Can Island Koolie drink insulator is made from a soft stretch neoprene fabric with a Hook & Tackle logo. It's lightweight and portable, but most importantly will keep your favorite beverage chilled at just the right temperature. Some call these Koozies but we call them Koolies because they are so kool. Features: Stretch Neoprene Fabric Lightweight & Portable Regulates Temperature to Keep Your Beverage Chilled