Water resistant. GORE-TEX Extended Comfort lining for waterproofing and breathability, a mono-density EVA midsole for support and cushioning, and an Asolo/Vibram Megagrip outsole with self-cleaning lugs for optimal traction, along with a hardware lacing system, TPU toe cap, and an A-Sport anatomical insole, weighing 470g (1/2 pair size 8 UK).