Inov-8 Women's Trailroc 255 Trail-Running Shoe 100% synthetic Imported Rubber sole Heel measures approximately 1.5 inches" The 255 offers a high performance trail show with protection for the developing trail runner. inov-8's groundbreaking Tri-C compound outsole of three different rubbers offers industry leading grip and durability A third generation Meta-Shank ensures natural movement with rock protection Choose this shoe for a protective, natural trail running experience Weighs only 9 ounces