Dakine Kainui Team Leash 6FT x 1/4IN Serious swell calls for a serious leash. The Kainui surf leash offers trusted security in double to triple overhead peaks. It's built with stout 1/4-inch (6.5mm) urethane Dura-Cord to keep you connected to your board in the strongest conditions. Dakine built its reputation on building the strongest surf leash available, and the Kainui continues the tradition. 5-8 ft Wave Size | Streamlined day-to-day design for surf up to a few feet overhead 1/4 in. (6.5 mm) highest quality urethane Dura-Cord for maximum strength 1.5 in. (40 mm) molded neoprene ankle cuff for maximum comfort 1 in. (25 mm) detachable railsaver Opti-Flex molded urethane leash ends for maximum durability and strength Easy Clip compatible for maximum safety Posi-Lock hook and loop closure Marine grade stainless steel swivels Polyester leash string