Unlike most SUP leashes, NRS designed the Stand Up Paddleboard Leash with Quick Release Bag for whitewater. Just attach the floating polyurethane coiled line to the Cordura waist bag and detach the line with the quick release buckle if you fall in the water that way, your SUP won't drag you down and around in the current. The quick release belt also doubles as a calf strap so you can SUP in flatter waters comfortably too. The coiled line is only twenty inches long, but it can extend up to eleven and a half feet, and two in line swivels prevent the line from tangling up. The included lanyard attaches to your SUP easily and quickly so you're ready for some stand up paddleboarding in any water.