While they maintain the existing shoe’s silhouette, there are some notable stylistic changes. For instance, the upper is separated into two color hemispheres by a reflective strip that wraps around from toe to heel. Furthermore, the brand’s signature Three Stripes are standalone elements, rather than being built into a unit with the eyestays.

On the individual shoes, the color combinations are both unique and subtle. They manage to enhance the overall look of the shoes without bogging the styling down with too many details. It’s a tightrope job — easily toppled, but a stunning sight to behold when done right.

Even the Continental outsole has been given a touch-up; there’s an orange X — a reference to H.Koumori’s logo lettering — visible through the outer layer.

Adidas x Hermanos Koumori Ultraboost 5 HK Running Shoe sole
Even the sole gets a stylistic upgrade — an orange X that references H.Koumori’s signature logo lettering.
Hermanos Koumori

Harder, better, faster, stronger

If the only swaps on these Ultraboosts were stylistic, they’d still be among the most spectacular Adidas has ever offered. However, that’s not the case; there are some material upgrades that help elevate them further.

Typically, these running shoes have a textile upper. But these swap that for ripstop fabric, which lightens them up and adds additional durability. But that’s not all.