The HOKA Challenger 7 GORE-TEX women's shoes are born in that place where asphalt and trail meet. The GORE-TEX membrane resists water and wind to ensure maximum waterproofing while allowing breathability. How is this achieved? Thanks to the membrane with pores that are 20,000 times smaller than a water droplet, but 700 times larger than a water vapor molecule. This way, water cannot enter but the skin can breathe. Each membrane is checked and tested in the harshest weather conditions.