Ride the wave of support in the Mizuno Wave Inspire 21. Designed to deliver the ideal balance of cushioning, responsiveness, and support, the Mizuno Wave Inspire 21 is the perfect partner for your daily runs. Featuring inherently stable geometry, an additional 7mm of midsole has been added to the midfoot and is combined with Mizuno's signature Wave Plate technology for the ultimate stable ride. A dual layered midsole consists of Mizuno Enerzy nxt in the heel for supreme softness and protection during landings, and Mizuno Enerzy for cushioning during transitions.