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. GORE-TEX Upper Waterproof GORE-TEX upper and 3-D print toe cap help keep water out so your feet stay dry. ReactX Foam ReactX foam midsole gives you lightweight energy return. ATC Outsole Nike Trail ATC outsole is made with an all-terrain compound that’s great even in wet weather. High Ankle Cuff A sturdy, high ankle cuff helps keep debris and trail rubble from entering your shoe. What's New? ReactX foam midsole is 13% more responsive than previous React technology.