Saucony's advanced trail running shoe, the ISO Series Xodus, provides maximum protection and a customized fit that contours to the shape and movement of your feet. Features ISOFIT dynamic fit system adapts to the shape and motion of your feet RUNDRY lining keeps your feet drier by wicking away moisture Internal gusset prevents and keeps debris out EVERUN midsole adds energy return, durability, and continuous cushioning Super-tacky PWRTRAC rubber provides 3x the traction than standard rubber Engineered for optimal grip and to shed mud 4mm offset.