These Kansas City Royals jersey bottle holders are constructed from 3 mm neoprene "wetsuit" rubber, and will hold a longneck bottle. They are designed to keep your favorite 12-20 oz. bottle or can beverage COLD... and your hands WARM! The neoprene construction makes it easy to remove the bottle from the holder - no pliers needed. It"s stretchable, washable and foldable. Made by Kolder.