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 easily slip on your shoes and start your ride in no time. 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 a rubber tread provides remarkable durability and reliable traction on almost any surface.