Avia Men's A553M Fitness Shoes:
This modern running shoe features CONVEXUS, an arched released cavity impact system and an anatomical cradle for the ultimate in performance and comfort. Removable molded EVA upper. Antibacterial, removable molded Ortholite sockliner with strike pads in the heel and forefoot. Compression molded EVA midsole with injected TPU shank and polyurethane heel unit. Solid rubber outsole with forefoot flex grooves.