With the Cylinder™ II you get a mountain bike shoe that offers you high wearing comfort and the advantages and precision of the BOA® adjustment system. With a single adjustment and the front strap, you'll be in your shoes and ready for the trail in no time. The BOA® L6 twist lock allows you to make adjustments in 1 millimeter increments and quickly open them again with a macro release. The upper provides optimal support and breathability, while our proprietary nylon and rubber outsole offers impressive durability and reliable grip on almost any surface.