New Balance W1540SG2 Running (Stability Support) Women's Stability Support Shoes Silver/Green Synthetic/MeshThe New Balance W1540v2 is a lace up women's athletic running shoe with Rollbar technology for the ultimate foot stability. These New Balance W1540SG2 Silver Green Synthetic Mesh Women's Shoes have the following features: 10 mm drop: due to variances created during the development and manufacturing processes, all references to 10 mm drop are approximate Blown rubber outsole Dual density collar foam ACTEVA LITE 24% lighter than New Balance's standard