Storm Ahead A GORE-TEX layer helps keep out water and your feet dry. An additional gaiter at the collar helps keep extra debris and water from getting inside your shoe. Tread-Inspired Traction The rubber outsole has a shockwave-like pattern for a fast look inspired by bike tyres. Nubs throughout give you traction and a smooth ride between trails and roads. Traction on the heel and toe keeps you steady when going uphill or downhill. Smooth and Stable Nike React technology is a lightweight, durable foam that delivers a smooth, responsive ride. Its full-length design gives your foot stability as you brave rocky terrain.