For your next interval training session or group fitness class the adidas Pure Boost X TR training shoe is the tool you need. This shoe offers a more women's-specific style enhanced with the uber-successful boost™ technology. The silky soft upper seamlessly fits your foot and allows for comfortable movement. A sleek design provides a trendy style you can take from training to an outing with friends. Upper: Unique upper materials allow for a terrific fit and great performance by allowing for stretch while supporting the foot. Innovative lacing system removes the need for many lace holes, eliminating pressure on the top of the foot.Midsole: Boost™ midsole provides unmatched energy-return and superior cushioning. Outsole: Includes a pivot point for easier forefoot rotation during movement.