Altra Women's Repetition 100% Air Mesh Imported Synthetic sole Heel measures approximately 1.5" 0mm heel-to-toe drop Zero Drop full cushioning platform Dual-layer EVA with A-Bound flex cushioning Stabilipod naturally stabilizing technology Removable varus stability wedge Weight: 9.9 oz Achieve proper foot alignment without sacrificing stability and cushioning with the Repetition running shoe from Altra.