DIALED-IN FIT AND PERFORMANCE ON THE TRAIL The Cylinder 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 UPPER Boa L6 (1mm + with macro release) retention with lower-volume strap Toe and heel microfiber reinforcements Synthetic upper OUTSOLE Co-molded nylon and rubber high-traction lugged outsole Mid-foot scuff guard Accommodates steel toe spikes FOOTBED Die-cut insoles WEIGHT 315 grams (size 42)