A favourite 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 purpose—to give you a fast, secure and trusted training partner for your miles. Breathable Support Perforations 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 Responsiveness A Zoom Air unit in the forefoot offers responsive cushioning. Every step helps create energy return for an optimal feel. It combines with a foam midsole for plush comfort as your foot hits the ground. Runner-Informed Transition Data from hundreds of runners helped inform the crash pad placement at the heel. It helps provide extra cushioning for heel-to-toe transitions.