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Mens Nike Air Zoom Structure 21 Running Shoe

Men's Nike Air Zoom Structure 21

Item #16394
NOW: $77.87
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Men's NIKE® AIR ZOOM STRUCTURE 21 :: Support your best running ever in the updated Men's Nike Air Zoom Structure 21 stability shoe. Your go-to shoe is back even lighter and more durable thanks to the updated mesh upper while the new Dynamic Fit locks down your foot perfectly. Smooth your way through any run thanks to two cushion densities working together to keep you stable and unstoppable. Hold steady and fly in your Structure 21 with a honeycomb outsole giving you perfect traction on all surfaces.

Stability: What's This?

SHOE CATEGORY What is this?


The Nuts & Bolts

  • Engineered mesh upper: Provides targeted ventilation and support
  • Dynamic Fit Technology: Locks down the foot
  • Full inner mesh bootie: Wraps the foot to enhance breathability and provides a sock-like fit
  • Dynamic Support system in the midsole: Provides a smooth transition
  • Notches on each side of the tongue: Allows for easy on and off
  • Compression-molded Phylon on the medial side and Cushlon foam on the lateral side are fused together: Creates a dual-density cushioning system
  • Zoom Air unit in the forefoot: Delivers responsive, low-profile cushioning
  • Honeycomb outsole pattern: Provides great multi-surface traction
  • Drop: 10 mm
  • WEIGHT: 10.4 ounces


Men’s Nike Air Zoom Structure 21: The Facts

Release Date:

September 2017

Best For:

Daily Running



Cushion Type:


Top Reasons to Buy the Men’s Nike Air Zoom Structure 21

If you have low arches, you should give the Air Zoom Structure 21 men’s shoe some serious consideration. It’s a stability trainer, meaning you’ll feel added support where you need it most. By correcting your stride, you could experience some major relief from shin splints, knee pains, or back woes caused by running without support.

The Flywire system has been totally redesigned in the latest men’s Structure 21. With flattened and widened cables, your foot will feel way more locked in than what your current trainers might offer.

This shoe is great for anyone who wants a little more support, without having to give up responsiveness and cushioning. You’ll experience smooth transitions and better forward movement without taking on as much bodily stress.

What People Are Saying about the Men’s Nike Air Zoom Structure 21

Those with wider feet say they really love the spacious toe-box in the Nike Air Zoom Structure 21 for men. Crammed feet are officially problems of the past.

Runners who find themselves in inclement weather conditions give a shout out to the honeycomb outsole of the Structure 21 that delivers plenty of traction across wet surfaces. No more slipping or sliding, just serious pavement pounding.

If you want a running shoe that feels like a sock, you’ll love the men’s Air Zoom Structure 21-many users say it wraps so well, that it fits like a more like a custom-made sock than a running shoe.

Men’s Nike Air Zoom Structure 21 Updates

The new Air Zoom Structure 21 for men is lighter and stronger than its predecessor without sacrificing cushioned comfort. It introduces an even softer Flymesh material in order to shave off some weight, while still coming through with the ever-popular Nike Zoom Air cushioning. .

Size and Fit of the Men’s Nike Air Zoom Structure 21

General Size and Fit

The men’s Nike Air Zoom Structure 21 is geared to provide supportive stability to those who need it. When selecting your size, we recommend going up one half from what you normally wear.


The upper consists of a one-piece Flymesh fabric that’s made with lighter-than-ever fabric. Nike’s Dynamic Fit system in the men’s Structure 21 is designed to provide an adaptive fit, conforming to each male’s unique foot.


The Zoom Air cushioning in the midsole of Nike’s Structure 21 for men gives you a springy and snappy underfoot feel. The air pockets compress on every landing for shock absorption, then immediately bounce back to shape to prepare for the next foot fall.


You’ll find top-notch stability in the outsole of the men’s Nike Air Zoom Structure 21. It’s flat and wide, featuring firmer foam cushions under the arch and a softer foam material on the outer side to for optimized stability, shock absorption, and impact protection.

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