The Ozone Closed Cell Kompressor bag keeps the leading edge plastic profile battens concertinaed when packed. It requires a little more time to pack a kite, however Ozone highly recommend using it as this protects the kite and the Leading Edge battens from potential deformation.Light weight materials, internal compression straps and a breathable mesh lining keep weight and packing size to a minimum - perfect when traveling with multiple kites.The Closed Cell Kompressor bag is specially designed for our high performance foil kites such as the Chrono and R1. Features: Designed for High Performance Foil Kites Secure packing with Leading Edge concertinaed Light weight with internal compression straps Available in three sizes Small: R1: 6/7/8/9CHRONO: 7/9 MEDIUM: R1: 10/11/13CHRONO: 11/13 LARGE: R1: 15/17/19CHRONO: 15/18