Endorfins Surfboard Fins by Kelly Slater available at KSF! Introducing Endorfins surfboard fins – the perfect fusion of performance and style. Designed for passionate surfers who crave ultimate control and precision in the water, our Endorfins fins are engineered to take your wave-riding experience to new heights. Crafted with meticulous attention to detail, our Endorfins surfboard fins are made from high-quality materials such as fiberglass and carbon fiber composites, ensuring optimal strength, responsiveness, and durability. The advanced construction allows for exceptional flex and energy transfer, translating into powerful turns, increased speed, and enhanced maneuverability.