Giro GF21160 Mens Privateer Hv Dirt Bike Shoes Leather UPPER : High-quality, breathable microfiber. Strong and secure ratcheting buckle closure (replaceable). Offset strap D-ring at mid-foot OUTSOLE : DuPont Zytel nylon. High traction lugged outsole. Mid-foot scuff guard. Accommodates steel toe spikes FOOTBED : Molded EVA footbed with medium arch support. Aegis anti-microbial treatment WEIGHT : 345 grams (size 42.5)