FCS All Round 9ft Longboard Essential Calf Leash From small waves, to huge ocean swells, the new FCS Essential series leashes are designed and built to match all surfing styles and conditions.  The FCS essential series leash has been streamlined into a light, durable and super comfortable leash that is built to handle all conditions. Features Cord thickness: 7mm Wave Size: 2 - 8 ft In-cuff silicone grip, preventing ankle twisting Hypalon pull tab for ease of release Extra strength moulded velcro Extended overmould reduces tangles Contoured horn conforms to shape of ankle