Coming out December 2010, the Nike Structure Triax 14+ continues along the path of its predecessors. Using the same tooling as the Structure Triax+ 13, which means the midsole has not changed (still uses Zoom Air for added cushioning), the latest version makes minor tweaks to the upper. Since the ride quality of the 13 is well liked, maintaining the midsole/outsole configuration on the new version is a good thing. This continuity allows past users a greater chance for success with the update.
So what has changed?
There three significant changes to the upper of the Structure Triax 14. A notch bootie construction replaces the traditional tongue. The result is the less material above the foot creating a better fit environment. The notch aspect refers to the fact that the bootie construction slit half way down the shoe, near both eyestays to allow for easy foot entry. Another notch aspect occurs within in the eyestay line itself. By creating separation between the lowest and second lowest eyelet, the upper now moves better with the foot at toe-off. Lastly, the new upper contains Nike Flywire, which creates a supportive fit with less weight.
A stalwart in the running support shoe category gets tweaks to its upper for what should be a better fit, without changing the ride that so many have come to enjoy.