The ICEMULE Pro™ X-Large Cooler has a 33-liter capacity and can hold up to 24 cans and ice. Designed from MuleSkinET™ & MuleSkinEV™ for a rugged tough & sturdy material along with PolarLayer™ Insulation which helps keep your contents nice and cold. An amazing feature is the IM Airvalve™ which allows air to be added to the insulation layer for increased insulating capability and also allows you to remove the air for easy storage. Additional features include comfortable straps, no zippers, floats, welded seams to prevent leaking and 100% waterproof. The ICEMULE Pro™ X-Large Cooler is perfect for those day long hikes or fun in the sun by the water's edge.