Last one down the mountain buys lunch! Get a leg up on the group in the speedy, rugged performance of the adidas® Outdoor Adistar Raven Boost trail-running shoe! boost™ energy-returning properties keep each stride fully charged with light, fast energy. Breathable mesh and synthetic upper materials. Speed-lace closure. Plush tongue and collar. Breathable mesh lining offers a great in-shoe feel. Removable foam insole. ADIWEAR® rubber delivers optimal performance in high-wear areas of the outsole. Continental™ rubber outsole material delivers reliable grip in wet and dry conditions. Imported. Measurements: Weight: 11 oz Product measurements were taken using size 9, width B - Medium. Please note that measurements may vary by size.