SPECS: Holds up to 18 cans with ice Capacity: 20L Dimensions: 11.5 in. x 11.5 in. x 22 in. TECHNOLOGY: MuleSkinET™, an exceptionally sturdy exterior fabric, is combined with MuleSkinEV™ a tough interior layer, to create a rugged shell that protects against the elements PolarPlus™ insulation for 24+ hours ice retention The IM AirValve™ allows extra air to be added to the insulation layer, which increases the insulating capability. It also allows you to release air so that the cooler can roll up for storage FEATURES: Compact and portable Carry like a backpack or as a single sling pack Zipper-free roll-top closure Double-padded straps Floats while keeping water out