The Cylinder™ II mountain bike shoe offers comfortable wear with the simplicity and precision of a BOA® closure system. With a single dial and a set-and-forget Velcro strap at the forefoot, you can slip on your shoes and hit the trail in no time. The BOA® L6 dial provides 1 mm adjustment increments for a snug fit and a macro-release function for easy removal. The shaft construction offers excellent support and breathability, while our co-molded nylon outsole with a rubber tread provides remarkable durability with reliable traction on almost any surface.