ASICS Men's GEL-Trail Attack 6 Running Shoe 100% Synthetic and mesh Rubber sole Rearfoot and Forefoot Gel Cushioning Systems attenuate shock during impact phase and toe-off phases and allows movement in multiple planes as the foot transitions through the gait cycle Rock Protection Plate provides protection against stone bruises Trail specific outsole has reversed lugs to provide uphill and downhill traction on all types of terrain Anti Gravel Tongue features gusseted construction that prevents debris from entering the shoe Trusstic System reduces the weight of the sole unit while retaining the structural integrity of the shoe