Wave Sky 9

This is a soft, cushioned ride tuned for comfort over speed. Foot strike lands into deep, forgiving foam that takes the sting out of the road, and the moderate drop rolls you through the gait without demanding much from your calves. It feels best at genuine easy and steady paces, where the cushioning does the work and your legs simply cruise. Push the pace and the shoe's weight and softness catch up with you: it does not have the snap or turnover of a lighter trainer, so quicker sessions feel like hard work. Accept it for what it is, an easy-day and long-run companion, and it rewards you with a planted, protective feel that stays comfortable deep into a run when your form starts to fade.

Cushioning is the whole point of this shoe and it delivers. The tall 44.3mm heel stack gives you a deep, plush layer of protection that soaks up impact and keeps your legs feeling fresh on long, slow miles. It leans soft rather than firm, so it is forgiving underfoot and kind to tired joints, which makes it a strong pick for recovery runs and high-mileage marathon builds. The flip side of all that foam is that the shoe carries weight and does not offer much ground feel, so you trade responsiveness for comfort. For runners who prioritise leg protection over pop, that is a trade worth making, and the Wave Sky 9 keeps that cushioned feel consistent from the first mile to the last.

This is a neutral shoe with no medial post or dedicated support structures, so it does not actively correct overpronation. That said, the wide, deep platform and broad base give it a reasonably planted, stable-feeling ride for a max-cushion trainer, and neutral runners will feel settled through the gait. The softness does mean the foam can feel a touch tippy at very slow paces or on uneven ground, which is common for tall, plush shoes. If you need genuine stability or you know you overpronate, this is not the shoe for you, and the Mizuno Wave Inspire 22 is the natural support-shoe sibling to look at instead. For neutral runners after cushioned comfort, the platform is stable enough for everyday training.

The upper is built for comfort on long runs. A soft, well-padded tongue and heel collar cradle the foot without hot spots, and the engineered mesh has enough give to sit kindly over the top of the foot while still holding you in place. Breathability is decent for a plush daily trainer, so your feet stay reasonably cool on warmer runs, though this is not the airiest upper on the market. Lockdown is secure once the laces are set, and there is no notable heel slip once you are moving. Overall it is a fuss-free, comfortable upper that matches the shoe's easy-going character, the sort you can pull on for a two-hour long run and forget about.