Nike Air Zoom Structure 21 Woman's Structured Running Shoes Light Grey

Details: 
Weight: 255 grams (women's size 8 USA - 39 EU) 
Drop: 10 mm 

The upper, in engineered mesh variable weed without stitching offers lightness, breathability & agrave; and prolonged comfort. 

The midsole Phylon, pressed on the medial side, combined with Cushlon foam on the side, are cast to create a double density dampening system. In addition, the Air Zoom absorbs impact force, protects muscles, joints, and tendons making the shoe lightweight and durable. 

The sole made with honeycomb grooves providing a great multi-surface traction. Pentagonal waffle pistons ensure greater traction on all surfaces.

DYNAMIC SUPPORT
Dynamic support in the shoe's midsole provides the stability you need in an ultra-smooth ride, without the added weight or stiffness of a traditional medial post. It features more soft foam on the lateral side for cushioning on impact and more firm foam on the medial side for support.

Flywire
Flywire helps provide ultra-lightweight support and comfort for your foot. It gets its strength from thin nylon fibers strategically placed on the upper of the shoe to hold the foot in place, helping to reduce slippage during activity. This allows for a massive reduction in weight because material is used only where it’s needed.

Zoom
Nike Zoom cushioning is part of the Nike Air family, and—like its siblings—it’s lightweight and durable. Because Nike Zoom cushioning is incredibly thin, it brings the foot closer to the ground and enhances stability, especially during quick cuts and multi-directional movements. After impact, the tightly stretched fibers inside the pressurized air unit quickly bounce back into shape, providing a super-responsive feel and improved awareness of the surface you’re playing on.

Dynamic Fit
The Nike Dynamic Fit system eliminates the space between the foot and the shoe. The system works by drawing the entire shoe evenly to a point via the laces, which creates a comfortably snug and customed feel fit.