Endorfins is the name of Kelly Slater and Firewire's new brand of surf fins. Designed with ecological and high performance materials. Slater's Endor Fins are the lightest fins on the market. Endorfins are available in FCS2 and Futures configuration. One of the most outstanding features of these fins is their buoyancy. Kelly Slater fins float on the water. This reduces the risk of loss if they fall or break. Kelly Slater and Firewire brand fins designed with eco-friendly, high performance materials. The lightest fins on the market.