ASICS Men's GEL-Excel33 Running Shoe 100% Synthetic and Mesh Rubber sole This shoe's innovative Propulsion Trusstic&#174; gives your run an extra boost Breathable mesh upper with synthetic support overlays Heel Clutching System&#8482; for a better heel fit P.H.F.&#174; (Personalized Heel Fit) dual-density memory foam collar Anti-odor ComforDry&#8482; sockliner wicks away moisture