One-piece mesh upper offers nearly seamless flexibility Outrigger provides lateral support during multidirectional movement Flywire cables in the midfoot enhance the locked-in fit Neoprene collar wraps the heel for a supportive fit A layer of soft foam in the midsole provides lightweight cushioning Rubber outsole provides durability and multi-surface traction Cushioned support for high-intensity training. Boost your intensity in Women's Nike Dual Fusion TR HIT Training Shoe. An all-mesh upper keeps you feeling light on your feet while the soft foam underfoot cushions your every burpee and box jump.