NSI’s Standard 9’ Calf SUP is what a SUP leash should be, comfortable, easy to use, built to last and NOT damaging to your board. NSI’s Standard Calf Leash has a padded neoprene cuff which offers comfort and is easy to adjust to fit a variety of sizes. Tubular webbing with internal bungee provide strong yet “user-friendly” material you can use to get back to your board. Our unique webbing design will also not damage your board. This leash is great for all types of paddling from flat water – to down winders.