The NRS SUP Board Leash features a tightly coiled line that stays out of your way when you don't need it. For river SUP, choose the NRS the NRS Quick Release SUP Leash.The coiled leash stretches to allow full freedom of movement while staying out of your way when you're in the action.The relaxed coil is only 20" long but extends to 11' (132").An in-line swivel keeps the leash from tangling up.Comfortable calf strap secures with a hook-and-loop closure.Included prussic cord loop lets you tether the leash to a fiberglass board.