Air Jordan Zion 4 Grey Fog: sizing, review and style

Some basketball shoes shout, others let your step do the talking. The Air Jordan Zion 4 Grey Fog belong to the second group: the same cushioning engine that made the Zion 4 one of the most talked-about silhouettes in the Jordan lineup, wrapped in a cool grey you can take off the court without anyone noticing you're wearing a signature shoe.

The Air Jordan Zion 4 Grey Fog is Zion Williamson's fourth signature shoe, in a neutral grey colorway with metallic details. It runs a removable Cushlon 3.0 midsole over a full-length parabolic Air Zoom strobel, with a low cut and a wide base, built for explosive takeoffs and hard landings.

Side view of the Air Jordan Zion 4 Grey Fog in cool grey with leather and mesh upper and translucent outsole — Cool grey covers almost the entire upper: the silhouette's shapes take priority over color.

What are the Air Jordan Zion 4 Grey Fog like inside and out?

The upper combines leather and mesh: leather in the lateral containment zones, where the shoe has to handle violent changes of direction, and mesh on the instep so your foot can breathe. In Grey Fog that contrast reads through texture, not color, and that's the whole appeal of the colorway.

The collar is padded and low-cut, with a build clearly geared toward lateral containment. The outsole uses a computational design, with a wavy pattern on translucent rubber that gives it a clean, slightly futuristic look from below.

Cushioning: why the Zion 4 gets so much buzz

This is the real leap over the Zion 3. The combination of a removable Cushlon 3.0 over a full-length Air Zoom strobel posted some of the highest impact absorption readings ever measured in basketball shoes in independent lab tests, with above-average energy return in both the heel and the forefoot.

On the court, that means hard landings that don't hammer your knees and a noticeable bounce when you push off. Reviews agree that the Zion 4 feels much bouncier than its predecessor precisely because the Air Zoom unit now runs the full length of the foot.

Air Jordan Zion 4 Grey Fog: sizing and fit

It's the number one question, so let's be honest. The review consensus is clear: narrow or medium feet, go true to size. The fit is low-volume (makes sense, with a removable midsole inside) and the toe box is snug.

If you have wide feet, going up half a size is the recommendation you'll see again and again in reviews; some point out that the toe box got even a bit narrower compared to the Zion 3. There's also mention of a short break-in period: the first few wears are the firmest.

Narrow or regular feet: true to size
Wide feet: half a size up, or a full size if you want real room
Volume: low; the midfoot is more forgiving than the toe box
Use: the thin rubber and shallow grooves make it more of an indoor-court shoe than an outdoor one

You can check size availability on the product page before you decide.

Zion 4 vs Zion 3: what really changes

Three things. Cushioning takes a clear leap with the full-length Air Zoom. The base gets wider and gains stability on hard plants. And the outsole is completely redesigned with that topographic pattern on translucent rubber.

In exchange, the shoe picked up some weight (about 408 g in a men's US 9, above the category average) and the fit is still the weak spot for wide feet. It's a model with character: it shines where it counts and doesn't hide where it falls short.

How to style the Air Jordan Zion 4 Grey Fog off the court?

This is the colorway's quiet selling point. An almost monochrome neutral grey is one of the easiest things to wear on the street: it doesn't compete with anything and adds volume without asking for permission.

Light techwear: charcoal cargo pants, a black windbreaker and dark layers
Denim and basics: wide-leg jeans, a plain sweatshirt and tall white socks
Gym to street: a heather grey tracksuit, with the silhouette as the only statement piece of the look
Full monochrome: grey on grey, letting the metallic details do the accenting

Buy the Air Jordan Zion 4 Grey Fog at Next Step

If you're after a basketball shoe with serious cushioning and a clean look, this is one of the most well-rounded options in the Jordan lineup. At Next Step you get it 100% new and authentic, with 14 calendar days to return it from delivery and fast shipping to Spain and all of Europe.

Air Jordan Zion 4 Grey Fog — see all the details and available sizes here and grab your pair before your size sells out.

Frequently asked questions

Do the Air Jordan Zion 4 Grey Fog run big or small? +

For narrow or medium feet they run true to size: order your usual size. If you have wide feet, reviews recommend going up half a size, since the fit is low-volume and the toe box is snug. Some people even go up a full size for real room in the forefoot.

What cushioning does the Zion 4 have? +

It runs a removable Cushlon 3.0 midsole placed over a full-length parabolic Air Zoom strobel. In independent tests, that combination recorded some of the highest impact absorption readings in basketball, with above-average energy return in the heel and forefoot.

Can you wear them on outdoor courts? +

It's a shoe built mainly for indoor courts. Reviews point to fine grooves and a thin rubber layer that reduce durability on asphalt, plus traction that loses consistency on dusty floors. On clean hardwood, though, the grip performs well after a short break-in.

What's the difference between the Zion 4 and the Zion 3? +

The big change is the cushioning: the Zion 4 runs the Air Zoom unit along the entire foot and feels bouncier and more protective than the Zion 3. It also widens the base for more stability and debuts a computationally designed outsole. On the flip side, it weighs a bit more.

Are the Air Jordan Zion 4 Grey Fog from Next Step authentic? +

Yes. At Next Step every pair is sold 100% new and authentic, with 14 calendar days to return it from receipt of your order. Shipping to Spain and all of Europe is fast, and you can check size availability directly on the product page.