The Spark R&D Surge ST Pro Splitboard Bindings take the powerful, big-mountain performance of the Surge and turn it up to eleven with premium, weight-saving materials. Featuring carbon-reinforced nylon highbacks and a full Pebax construction, theyre lighter, stiffer, and more responsive for riders who push the limits on every ascent and descent. Built for long days, steep lines, and serious objectives, the Surge ST Pro is pure splitboard horsepower.