Meet the newest addition to the Nutshell family: the 17L Nutshell Cooler is made for all your spring picnics and summer days at the beach. Featuring our natural CocoFiber Insulation, it keeps ice frozen all day, can be carried hands-free and folds flat to half the size into a tote for easy storage. Nutshell makes cool collapsible coolers insulated with coconut husk fibers: the modern sustainable cooler that doesn't compromise on style or performance.