Reebok Lightest, Most Flexible Sole. Reebok Yourflex Trainette 9.0 MT Women's Training Shoes in White / Alloy / Vicious Violet. The only place you strive for extra weight is on the rack. These nimble sneakers feature the lightest and most flexible sole in Reebok training line, and offer comfortable, sculpted support. So throw another plate on the bar. These featherweight shoes can handle it. Neoprene and mesh upper for sculpted comfort and breathability. Low-cut design for ankle mobility. Microweb technology for midfoot support. Oversized delta logo on the side. Ultralight outsole for maximum flexibility. Color: White / Alloy / Vicious Violet.