"Women's Mizuno® Sky Prime: The Women's Mizuno Sky Prime is a supermax cushion trainer built for runners who want structured softness across recovery days, easy runs, and long runs. MIZUNO ENERZY NXT+ foam sits at the core of the midsole, compressing deeply underfoot to absorb impact while an Innovative Clip Midsole Design adds structure around the foam so the ride stays controlled rather than simply soft. Within Mizuno's lineup, the Sky Prime occupies the high-cushion end of the spectrum without sacrificing the balanced feel that keeps it usable across a range of daily training efforts.The Innovative Clip Midsole Design works alongside the ENERZY NXT+ foam to create a ride that feels cushioned through heel strike and transitions evenly toward toe-off, which means runners logging back-to-back days will notice less fatigue accumulating underfoot. The shoe is positioned as a neutral trainer, so it suits runners who do not require additional medial support. Its combination of maximum cushioning and structural integrity makes it a practical choice for high-mileage weeks where both comfort and consistency matter.Why Our Fit Experts Love This Shoe""I took the Sky Prime out on a 10-mile Sunday long run after a hard week of training. The ENERZY NXT+ foam absorbed a lot of the late-mile fatigue I usually feel, and the midsole structure kept the shoe from feeling sloppy even when my form started to break down."" - Sabrina, Road Runner Sports Fit Expert, San Diego, CAWho It's Best ForThe Women's Mizuno Sky Prime is best for neutral runners seeking maximum cushioning with enough structure to stay composed over long distances. It suits runners who prioritize comfort on recovery days and long runs, and who want a daily trainer that holds up through higher weekly mileage without feeling unstable. VIP Family members can take the Sky Prime for a 90-Day test drive with our Perfect Fit Promise."