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 quickly put on your shoes and hit the trail. The BOA® L6 dial provides 1 mm adjustment increments when tightening and a macro release function for easy removal of the shoes. The shaft construction offers excellent support and breathability, while our co-molded nylon outsole with rubber tread provides remarkable durability with reliable traction on nearly any surface.