Columbia Sportswear Women's Master Of Faster Low Outdry Ltr Trail Running Shoe 100% Leather and Textile Rubber sole Leather overlays for durability and protection combined with an innovative Outdry waterproof system to keep moisture away and allow for breathability Synthetic mesh body for lightweight feel and breathability, Techlite tongue top for fit and relief from unwanted lace pressure 3 Part Techlite midsole allowing for multiple density settings for cushioning and support, Midfoot Techlite platform allows for consistent cushioning throughout your stride, Rearfoot Techlite platform allows for consistent cushioning throughout your stride Internal TPU shank for torsion control, Omni-Grip high traction rubber compound meant for all outdoor conditions Weight: size 7 1/2 pair = 11.7oz/331g