Specifically-fitted and designed for a woman's foot, the adidas Pure Boost X TR Zip Training Shoe provides maximum cushioning and responsiveness that delivers a light, flexible feel that supports the natural movement of your foot. Tech Specs & Features: adidas' patented boost energy-returning cushioning. The more energy you give, the more you get. Textile upper for lightweight flexibility with a zip closure. Adjustable forefoot and midfoot support. Floating arch hugs and supports every step, molding to the shape of your foot. Non-marking rubber outsole.