The 8-foot SOL Quick-Release River Leash is designed specifically for whitewater and surf as it releases quickly allowing your stand up paddle board to be freed from you. You can also remove the quick release system from this leash and use the ankle attachment when in flat water, making this leash a 2-in-1 system. Our full swivel design, complete with a heavy-duty carabiner, eliminates twists and kinks in the leash, and the ankle strap is padded for extra comfort.