Constructed from nylon, these Trailgrip Après boots feature a GORE-TEX® membrane for waterproof protection. The design incorporates an EVA midsole for enhanced flexibility and lightness, while a Vibram MEGAGRIP tread provides traction on wet and dry terrain. nylon and textured PU upper ortholite® insole gore-tex® waterproof membrane TPU spoiler eva midsole Vibram Megagrip rubber tread elastic drawstring, zipper and lace fastening textured water-repellent toe cap