Description:   Dialed-in fit and performance on the trail. The Giro Cylinder mountain bike shoe offers the comfort you'd expect from Giro with the quick adjustment provided by a Boa dial. With a single dial and a set-and forget front strap, you can quickly get in your shoes and hit the trails. The Boa L6 dial offers 1mm adjustment increments when tightening, and a macro-release function to get out of the shoe. The co-molded nylon and rubber lugged outsole provides high traction and durability. Synthetic Upper: Boa L6 (1mm with macro release) retention with lower- volume strap. Boa closure optimizes fit with micro adjustments. Toe and heel microfiber reinforcements. Co-molded nylon and rubber high traction lugged outsole provides excellent grip and durability. Mid-foot scuff guard. Accommodates steel toe spikes.