What does women-specific really mean? For us, it’s shoe that is fully adapted to the morphology of your feet: a softer cuff, cradling anatomical design and a lower density ADV-C Chassis for greater stability. In the updated X-ULTRA 4 W GTX, all this is backed up by waterproof GORE-TEX protection and a grippy outsole that powers through uphills and descents, so you can explore every angle of your freedom.