Built for runners who want maximum comfort on every mile, the Mizuno Sky Prime delivers a balanced and smooth ride from start to finish.
Best Use
Surface
Stability
Road Shoes Types
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Daily TrainersDaily Trainers
As the broad base of the running shoe pyramid, daily trainers are the definition of a go-to running shoe. They prioritize dependable comfort, support, durability, and routine versatility. They're a staple in every runner's closet. If you're newer to running shoes, you can confidently start your journey here.
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Performance TrainersPerformance Trainers
Performance trainers (or "super trainers") blend elements of daily trainers and super shoes, often giving you the benefits of advanced foams and plates while being adapted for daily training. They make fast runs faster and long runs easier. Their high versatility also makes them great choices as accessible racing shoes.
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Race Super ShoesRace Super Shoes
The pinnacle of the pyramid, super shoes are the fastest running shoes you can buy. They're designed to race your absolute best and are the apex of running-shoe technology and innovation. Often built with carbon-fiber plates and cutting-edge superfoams for the highest energy return, they're made for ultimate racing speed.
Surface
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Roads & PavementRoads & Pavement
Road running shoes feature smooth outsoles that are designed for running on paved surfaces such as roads, sidewalks, and bike paths.
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Smooth Trails & FireroadsSmooth Trails & Fireroads
Designed to handle most trail runs, these shoes prioritize comfort and a smooth ride. These shoes are great for anything from smooth singletrack, park trails, and fireroads making them ideal for those who run from their doorstep on streets before hitting the trail.
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Rocky & Technical TrailsRocky & Technical Trails
These shoes are best used for hard, rugged trails such as shale, granite or sandstone where grip on smooth surfaces and underfoot protection are important.
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Soft & Muddy TrailsSoft & Muddy Trails
Designed for use in muddy, soggy conditions, these shoes feature very aggressive outsoles that dig deep into soft ground for exceptional traction.
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Snowy & Icy TrailsSnowy & Icy Trails
These shoes feature technical outsoles designed to grip snowy and icy trails making them ideal for winter trail running.
Stability Level
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Neutral Running Shoes
Neutral shoes support the foot through a normal range of arch collapse and generally do not have built-in technology to correct movement.
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Stability Running Shoes
Stability shoes are a great option for those who overpronate or need added support. These shoes help to limit the inward rolling motion of the ankle while running or walking and assist in guiding the foot straight through the gait cycle.
At A Glance:
- Sculpted midsole geometry helps guide smooth transitions while enhancing the shoe's balanced feel
- Dual foam midsole for a soft and responsive ride with stability and structure
- Premium option for runners seeking comfort for everyday miles and long runs
Product Highlights:
When every mile calls for lasting comfort, the Mizuno Sky Prime is built to make the road feel smoother. This max-cushioned daily trainer combines two types of Mizuno foam with an innovative design, creating a soft and responsive ride that feels balanced from your first step to your last.
At the heart of the Sky Prime is a dual foam midsole that pairs nitrogen-infused PEBA foam with EVA foam, giving you the benefits of both materials in one smooth ride. Close to your foot, the nitrogen-infused PEBA MIZUNO ENERZY NXT+ layer delivers a lightweight, springy feel with enhanced energy return, helping the shoe feel lively and responsive underfoot. Beneath it, close to the ground, the EVA-based MIZUNO ENERZY NXT foam adds structure and stability to help balance the softness of the upper layer.
The midsole's Clip Midsole Design uses a sculpted geometry to shape the cushioning platform and help guide the foot through a smooth, balanced transition. This design absorbs impact at landing while helping you move naturally from heel to toe, creating the effortless, floating sensation the Sky Prime is made for.
A breathable engineered mesh upper helps promote airflow and keeps the fit comfortable, while the gusseted tongue helps hold the foot securely in place throughout your run. Underneath, the durable rubber outsole provides reliable traction and durability in high-impact areas, giving you a dependable platform for daily miles.
Whether you're heading out for recovery miles, building endurance on a long run, or simply getting in your daily miles, the Mizuno Sky Prime delivers a responsive ride designed to keep comfort going for miles.
Model Number: 411625.9F9Q
Specs & FitLearn More
Shoe Specs
- Weight: Coming Soon
- Heel Stack: Coming Soon
- Forefoot Stack: Coming Soon
- Heel-Toe Offset: 6 mm
How We Measure Our Shoe Specs
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We measure every shoe in-house to provide accurate and consistent details.
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Weight
Weight is measured per single shoe, including laces. Men's and unisex styles are based on a men's size 9, and women's styles are based on a women's size 8.
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Heel Stack
The heel stack refers to how high your heel sits above the ground when wearing shoes. Based on Men's size 9 as the standard.
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Forefoot Stack
Forefoot stack refers to how high the ball of the foot sits above the ground when wearing shoes. Based on Men's size 9 as the standard.
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Heel-toe Offset
Heel-toe offset (drop) is the difference in height between the heel stack and the forefoot stack. We use the number given to us by the brand.
How We Measure Shoe Fit
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All measurements are based on Medium width. Note: fit is relative to the "average" running shoe.
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We partner with SmartLast, a program by Heeluxe, to use advanced shoe-measuring technology, to provide objective measurements for toe box, midfoot, and heel widths as well as overall length.
Learn more about the SmartLast measuring process here.
Stack Height
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MinimalMinimal
14-18mm. The shoe has a thin midsole that allows for a natural running experience. Racing shoes and minimalist shoes are common here. These shoes offer a feeling of being connected to the road or trail.
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LowLow
19-23mm. The shoe has a slightly cushioned feel and may feature added cushioning technologies. Performance training shoes and some trail shoes are common here. These offer protection during footstrike but prioritize a lightweight, grounded experience.
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MediumMedium
24-28mm. These shoes have a stack height that falls near the middle of the spectrum. The shoes in this category are versatile and great for all types of runs and distances.
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HighHigh
29-34mm. The shoe has a thick midsole and ample cushioning. These shoes are highly protective and absorb more impact than the body.
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MaximalMaximal
35mm plus. The shoe has an extremely thick midsole and extra cushioning. The focus is on protection and soft foam underfoot with hardly any ground feel.
Technologies
MIDSOLE
- MIZUNO ENERZY NXT is a nitrogen-infused EVA foam close to the ground that delivers lightweight bounce, soft landings, and enhanced responsiveness without losing Mizuno's signature feel.
- MIZUNO ENERZY NXT+ is a nitrogen-infused PEBA foam close to the foot that delivers a lightweight energy return, soft cushioning, and a lively, responsive feel to help keep every stride feeling smooth and effortless.
OUTSOLE
- X10 carbon rubber is Mizuno's most durable rubber compound for longer wear.
UPPER
- Engineered knit delivers a comfortable, soft wrap of your foot via almost entirely recycled content.
- Gusseted tongue creates a sock-like feel and helps keep the tongue centered and locked in place.