A BOOST midsole offers long-lasting cushioning and energy return on rocky surfaces, while the mesh upper with seamless overlays provides a comfortable, sock-like fit. The stretchy and adaptive knit collar keeps dirt and debris from getting in, and the Continental™ Rubber outsole maintains confident traction across all terrain, wet or dry. This shoe's upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic — reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our ocean. The other 50% of the yarn is recycled polyester.