New Balance Men's M880TR Running Shoe 100% Mesh Rubber sole Blown Rubber Outsole,N-Ergy, Full length ABZORB Strobel board Sticky Rubber Outsole is made of durable, tacky rubber for traction on slick surfaces Aggressive lugged outsole give maximum traction for off-road activities. Gusseted Tongue fully attached to shoe keeps debris out. Acteva LITE, Stablility Web, Dual Density collar foam