For all body sizes. Adjustable waist belt from 70 to 110cm. Simple, ergonomic system. Minimalist, good fit, excellent freedom of movement. The hook is quick to attach and detach during flight. Made of reinforced plastic to prevent damage to the board. Internal spine reinforcement in EVA pads for comfortable lower back support. Rigid composite external reinforcement for responsive lower back support. The front loop for attaching kite leash allows you to free your wrists and use a shorter leash. The belt loop on back for attaching board leash prevent your feet from getting caught in the leash when changing edges.