Ocean & Earth OneXT Premium Cold Water 7ft Surfboard Leash  The Ocean and Earth Cold Water leash has unquie features that offer better performance in colder climates. Suitable for water 18 degrees or below. It\'s a great everyday leash designed so strong it will probably outlast your surfboard!  Wave Size: 10ft  Cord: 7mm Strap: 50mm Features: Cold water urethane - The new cold wter series has specifically engieered urethane designed for water temperatures below 18 degrees Anti Slip Silicone strap - Engineered rasied rubber print, positioned on the inside of the neoprene ankle.  Extra Long strap - A longer strap to be worn on the oustide of your wetsuit and boots