FCS Competition Essential 6ft Surfboard Leash  Inspired by the revolutionary freedom leash. The FCS essential series leash has been streamlined into a light, durable and super comfortable leash that is built to handle all conditions. Features Wave Size: 0 - 4 ft. Cord Thickness: 5.5mm. 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