1. Keep your drinks cold, the beer bottle cooler sleeve is made of durable 3 mm thick neoprene. The sleeves will keep your cold drinks cool for a longer period of time. Our sleeves can also protect your hands from frostbite. 2. The beer bottle cooler has a convenient front zipper opening for easy access. 3. The beer bottle cooler cover can be washed and used many times. 4. Our neoprene insulation sleeves allow you to enjoy your own iced drinks anytime, anywhere, whether in school, office, home or on the go