NWT Columbia Women's Nikiski 503 Bootscolor: black, graphitesize: 9.5 women's The Columbia Women's Nikiski 503 Boots are comfortable and well-constructed. The Nikiski 503 Boots feature breathable membrane construction, a fleece lining, 100g insulation, omni grip non marking traction rubber, and waterproof material. This versatile winter boot delivers comfort, warmth, and protection from the elements on every challenging day.Tech SpecsUpper: Suede Leather / MeshMidsole: Techlite™EVAOutsole: Omni-Grip™Rubber