The North Face Amp Boa running shoe is designed and built specifically for running trails and the occasional short stretch of road. Abrasion resistant synthetic leather upper. Boa multi adjust lacing system with Powerzone lace guides provides custom fit and adjustability. Northotic™ ergonomically designed multi density footbed with AgION® antimicrobial footbed covering. Triple density lightweight EVA midsole. Roll Control medial heel wedge. Heel X-2 O2™ air pod. Blown rubber forefoot crash pad. Injection molded TPU shank plate. Ultra lightweight perimeter UltrATAC™ rubber outsole. Wt. 13.0 oz.