FAST TRAINING FOR THE COMMITTED RUNNER.A favorite returns. Made for the runner looking for a shoe they can wear daily, the Nike Air Zoom Structure 23 keeps you cushioned with a plush, ventilated design. It's been built with a purposeto give you a fast, secure and trusted training partner for your miles.Breathable SupportPerforations at the forefoot and midfoot add ventilated support to the upper. A woven heel delivers a secure fit to help keep your foot in place.Cushioned ResponsivenessA Zoom Air unit in the forefoot offers responsive cushioning. Every step helps create energy return to help drive you forward. It combines with a foam midsole for a plush feeling as your foot hits the ground.Runner-Informed TransitionData from hundreds of runners helped inform the crash pad placement at the heel. It helps provide extra cushioning for heel-to-toe transitions.A plush tongue and collar deliver comfort for your foot. More Details Synthetic leather and textile materials in upperOffset: 7.6mm