The Nike Free TR Fit 2 training shoe was designed for the female athlete looking to improve lower body strength and flexibility while training for her sport. Engineered foam construction upper treated with DWR to help keep your feet dry. Asymmetrical internal structural support system offers multidirectional movement. Stretch heel counter adds ankle mobility. Phyliteï¿½ midsole with linear and lateral flex grooves provides ultimate multidirectional flexibility and natural motion. Rubber outsole with heel and forefoot rubber pods gives multidirectional traction and control on all surfaces. Wt. 6.7 oz.