Futures brand * Alpha 3.75 Quad Rear surfboard fins * Made with exclusive composite of carbon and air infused * Super lightweight * Quad Rear fin set * Small size performance surfboard fins The Futures Alpha 3.75 Quad Rear surfboard fins is ideal for small-sized surfers. This Quad Rear fin set is manufactured in the US, using a special composition that is infused with carbon and air. The Alpha 3.75 QR fins are considered as all-around performance fins because it provides not just balance, but also a whole lot of spring, predictability, and hold. This fin set is also super lightweight.