Surf To Sumit Sonic Kayak Back Band - The new standard in whitewater and performance touring back bands, the Sonic Kayak Back Band from Surf To Summit seamlessly blends comfort, support and performance. The Sonic Kayak Back Band provides optimum back coverage without inhibiting your range of motion. Tri-laminate foam padding cradles your back, while a PVC plastic reinforcement sheet provides support. With this new generation process of thermal-molded, soft-conforming foam you"re ensured a perfectly customized fit. This design creates a bomber combination that will fit in most whitewater kayaks and touring cockpits. The Sonic Kayak Back Band comes conveniently equipped for both Post (through-tower) and Grommet (tower-to-deck) attachment options. All installation instructions are included.