The team over at FastPass has deconstructed the Nike Kyrie 4, and the findings are conclusive.
Nightwing2303’s glowing Nike Kyrie 4 Performance Review made note of improved fit, great traction, and much improved cushioning. Now that the Kyrie 4 has been deconstructed, we can see where that added cushioning comes from.
First off, the Zoom unit in the heel has gotten longer, wider, and thicker. You can see a comparison of the Kyrie 3 and Kyrie 4 at the bottom of this piece, but the Zoom Air unit in the Kyrie 4 is now 11.36mm thick (versus the Kyrie 3’s 10.56mm) — that’s nearly a millimeter thicker.
Moreover, the heel Zoom Air unit is now nearly 4.5mm longer, and over 1.5mm wider. The Kyrie 4 also uses an OrthoLite insole that is nearly 1mm thicker than what was used in the Kyrie 3, and that rides atop a Cushlon midsole that is just slightly less dense than the midsoles of the Kyrie 2 and 3.
While many of these changes are numerically small, the difference in feel on-foot has been dramatic.
Be sure to check out Nightwing2303’s Nike Kyrie 4 Performance Review below. If you noticed anything interesting in this deconstruction sound off in the comments.