Reebok Women's Trainfusion Nine 2.0 Running Shoe Alloy/Flint Grey/Vicious Violet The Trainfusion 2.0 features a big lateral Reebok Delta, elevating the brandmark. Breathable lightweight mesh upper for simple athletic look. Stitched-on synthetic overlays for protection and support. Bold Delta on quarter panel for proud brand mark. 3D Ultralite midsole for our most lightweight/durable foam combination. Forefoot bump up midsole cradle � stabilizes the foot over the outsole. 3D Ultralite outsole for out most lightweight/durable foam combination. Forefoot flex grooves for flexibility and mobility. Reebok Women's Trainfusion Nine 2.0 Running Shoe Alloy/Flint Grey/Vicious Violet