Futures P8 Vapor Core Thruster Surfboard FinsThe most predictable yet dynamic fins on the market. Handmade, Vapor Core features a woven carbon exoskeleton that has been preloaded under tension for strength and spark. Instead of using a low density foam core to reduce weight, weve removed the core all together with a truly hollow core. The preloaded exoskeleton fibers, like a spark ready to ignite, yield instantaneous power transfer from your feet directly to the water for explosive power. The