Sockliner: Molded sockliner to enhance comfort and fit. Mesh and synthetic upper for lightweight and comfort. Midsole: Lightweight EVA midsole for long term cushioning. Lining: GORE-TEX Extended Comfort Footwear. Comfortable, stable and versatile, these men's hiking shoes are built to move fast through varied terrain. The hybrid design blends hiking-shoe support with a running-shoe-like feel. A mesh upper keeps it light and breathable. Dual-density foam balances comfort and stability on the trail. A Continental Rubber outsole offers extraordinary traction in wet and dry conditions. This product is made with Primegreen, a series of high-performance recycled materials.