The GT-XPRESS™ 2 shoe is designed for higher mileage training and durability.Featuring a mesh upper construction to improve breathability and keep feet cool,this shoe also incorporates synthetic overlays to improve support.Equipped with GUIDANCE LINE™ technology to help deliver a smoother stride,GEL™ technology cushioning in the rearfoot of the midsole creates better shock absorption during the landing phase of your stride.Lastly,the GT-XPRESS™ 2 running shoe implements AHAR™ technology helps reduce wear in high-contact areas of the outsole.