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 in no time and hit the trail. The Boa L6 dial provides 1 mm adjustment increments for tightening and a macro release function for easy removal of the shoes. The shaft construction offers excellent support and breathability, while the co-molded nylon outsole with rubber tread provides remarkable durability and reliable traction on almost any surface.