Nike Pegasus Trail 5 GORE-TEX Men's Waterproof Trail Running Shoes The winterized Pegasus Trail 5 provides wet-weather protection for trail running. A waterproof GORE-TEX upper, an all-terrain outsole and reflective details help you comfortably take on the elements. With a ReactX foam midsole, it gives you responsive cushioning for an energized ride. Waterproof GORE-TEX upper and 3-D print toe cap help keep water out so your feet stay dry. ReactX foam midsole give you lightweight energy return.