The Dakine Kainui 7' X 1/4" Surf Leash Black is perfect for when the swell shows up, then it's time to go for the Kainui surf leash. Suitable for head high to double overhead surf. The Kainui builds on Dakine's heritage as a surf leash brand founded in 1979 on Hawaii's North Shore. This 1/4 inch (6.5mm) urethane Dura Cord line has a sturdy 2 inch preformed neoprene ankle cuff and wider 1.5 inch detachable railsaver. The Kainui is your go to leash when conditions start to get bigger.