From Skechers, the Women's Hands Free Slip-Ins Glide-Step Vortex Running Shoes feature: Engineered mesh upper Skechers Hands Free Slip-ins® molded heel panel for an easy fit Heel Pillow™ holds your foot securely in place Glide-Step® geometric midsole designed to provide natural momentum with every step Lightweight, responsive ULTRA LIGHT midsole cushioning Skechers M-Strike® technology promotes efficiency in each stride. This midsole configuration creates smooth transitions from landing to toe-off Ultra-lightweight Skechers® Soft Stride™ cushioning foam for added comfort Flexible traction rubber outsole Approx. 1.5" heel height Imported.