Nike Air Alvord 10 - Women'sThe Nike Air Alvord 10 running shoe is for the trail runner seeking a modern, protective and durable ride with great comfort. Supportive overlays and internal midfoot strap offer a comfortable and great-fitting ride. Gusseted tongue construction helps keep debris out. Phylon™ midsole and Air-Sole® unit in the heel provides excellent cushioning. High abrasion, BRS 1000™ heel strike combined with multi-directional lugs give great traction and wear no matter the surface. Wt. 9.4 oz.