ASICS Men's GT 2000 4 Running Shoe, Carbon/Black/Hot Orange, 6.5 B US 100% Synthetic Imported Rubber sole Running shoe with breathable mesh and synthetic upper featuring Heel Clutching System with exoskeletal heel counter for improved fit ComforDry sockliner Rearfoot and forefoot GEL cushioning system FluidRide midsole Guidance Trusstic System