The Cylinder™ II mountain bike shoe offers the comfort you\\\'d expect from Giro with the convenience and precision of a Boa® dial closure. With a single dial and a set-and-forget front strap, you can get into your shoes and onto the trails in no time. The Boa® L6 dial offers 1mm adjustment increments when tightening, and a macro-release function to get out of the shoe. The upper construction provides great support and breathability, while our proprietary co-molded nylon and rubber lugged outsole provides remarkable durability with reliable traction on almost any surface. Key Features Upper: > Boa® L6 (1mm + with macro release) retention with lower-volume strap > Toe and heel microfibre reinforcements > Synthetic upper Lower: > Co-molded nylon and rubber high-traction lugged outsole > Mid-foot scuff guard > Accommodates steel toe spikes > Footbed: Die-cut EVA footbeds 315 grams (size 42)