Compatible with FUTURE LIGHTWEIGHT:The fiberglass case, which makes the fins strong and flexible, makes it easier to turn around while enjoying the surf. Perfect for a wide range of conditions from beach breaks to point breaks. A full set of 3 strong glass flex fins with fiberglass reinforced nylon construction. DURABILITY: Tested and thrashed by UPSURF professional group to make sure what buyers ordered are durable enough for usage. We are a surf company that has been in the surf industry over 15 years in China. We have worked for several big brands for many years. We have own designer team and production team for surf products. We have a very professional and responsible sales team. Our main purpose is to provide high quality and affordable products to our customers. Our mission is find the best way to serve the surf product market.