This is our keg jacket. Designed to keep your beer cold for up to 10 hours. The keg jacket is composed of three layers: heavy-weight nylon canvas for durability, high-quality insulation for extended parties, and a waterproof liner so you can add ice for parties over 10 hours long. The middle layer of high-quality insulation is what keeps your keg cold for up to 10 hours! If you plan on keeping the keg out for more than 10 hours just add a few bags of ice, and the keg will stay cold all night long.