Columbia Womens Trans Alps II Outdry Synthetic^Textile Imported Withstand the many miles ahead of you in the Columbia&reg; Trans Alps II OutDRY&trade; trail-running shoe! Predecessor: Trans Alps. Support Type: Overpronation/Stability. Cushioning: High energizing cushioning. Surface: Trail. Differential: 8 mm. OutDRY Extreme upper membrane delivers unmatched, breathable, waterproof protection from outside elements. Durable textile and synthetic upper materials. Lace-up closure. Padded tongue and collar. Smooth fabric lining offers a great in-shoe feel. Removable foam footbed. Full-length FluidFoam midsole provides cushioning, flexibility, and support. FluidGuide technology promotes mid-foot stability and a smooth ride. Heel/Toe: 18 mm/10 mm. Rubber outsole