Front lace system for easy entry and exit. EVA footbed. Built-in lateral stiffeners. Sizes: XS/S(up to 7), JR(2 - 7), STD(7 - 11), 2XL(12+). Please note: The X9 JR bindings will only fit the Junior Siege slalom waterski. All other binding sizes will fit the regular Siege slalom waterski.