Dakine Kainui Team 6' x 1/4 Inch Surf Leash (More Colors)A SIX FOOT SURF LEASH FOR WAVES UP TO TWO FEET OVERHEAD 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. Dimensions 6' x 1 4" [ 1. 83m x 6.