The Coxos 31" is another best-selling board, with tremendous versatility and a beautiful fishtail design and resin work on the top and bottom inspired by classic fish surfboards. The Coxos 31" is another best-selling board, with tremendous versatility and a beautiful fishtail design and resin work on the top and bottom inspired by classic fish surfboards. Shaped with a wide nose for better control over turns. The medium wheel base (18") gives you more stability, while still allowing you to make very tight turns. Built with a medium concave that gives enough grip to keep your feet in place. The Meraki (S5) system, combined with the 66x51mm 80A (medium) Ura wheels, will help you maintain better control of your slides.