The SPECS for Upper Weight: 1/2 per pair: 474 gram 1.6 mm water repellent suede Extra resistant mesh Inserts Wide rubber toe bumper offers abrasion resitance and toe protecion Eyelet and web lace closure Heel Lock System ADD Construction PU Footbed with antifungal, antibacterial, moisture and odor management properties The SPECS for Sole Bi-Density EVA Midsole provides lightweight cushioning and mid-foot stability Stabilizing PU Shank ensures heel area stability and mid foot control yet allows for walking flexibility in the forefoot area Vibram 973 Outsole: Sticky compound, great grip, dependable lug pattern Rubber Toe Bumper provides abrasion resistance for both the upper and midsole