For elite cross-country racers who need class-leading stiffness, superior fit, premium materials and light weight, the SCOTT MTB RC shoe is the only choice. This shoe offers a dual-zone Boa® Fit System IP-1 system that delivers ultimate fit and response, allowing on-the-fly adjustability in two separate zones. We placed an upper Boa® IP-1 dial at the top of the shoe and a midfoot IP-1 dial with power zone guides to allow 2:1 pull across the forefoot. It features an asymmetric microfiber airmesh conforming upper with an adaptive fit pattern. The ErgoLogic insole features an adjustable arch support and metatarsal button. A super-light ASE EVA outsole with minimal Sticki rubber tread unites all the benefits of our lightest, most exotic materials in this all-day shoe for elite racers. The stiff Carbon fiber outsole has a stiffness index of 10.