Incredibly light and updated for faster transitions, this high-performance running shoe boasts a nitrogen-infused foam and a redesigned gusset for a secure fit. The midsole featuring lightweight, nitrogen-infused DNA FLASH foam and outsole work together to deliver a powerful toe-off and more speed. Rubber technology in the forefoot and heel are strategically placed to conserve weight and promote fast transitions. Lightweight: puts cushioning and performance underfoot with an emphasis on streamlined comfort Stability: helps maintain comfortable foot alignment with targeted cushioning and support DNA FLASH nitrogen-infused midsole fuses explosive energy return with a lightweight, adaptable fit Guide Rails® Holistic Support System controls excess movement in your stride to help protect your knees Removable insole Textile upper and lining/rubber sole Imported