adidas' new 4D sneaker, the Ultra 4D, has surfaced in an enticing "Triple Black" colorway. The stealthy iteration arrives as the brand released the Ultra 4D in the original Ultraboost colorway of "Core Black" over the summer.

The standout design element of the Ultra 4D is a 4D-printed midsole made with light and oxygen. Above, black and grey Primeknit comes together to hug securely to the foot with each step. The midfoot lace cage serves a dual purpose, also branding the pair with adidas' signature Three Stripes, which appear in a glossy black shade. Additional branding can be found on the tongue, as well as the heel counter.

Sneakerheads have taken to Instagram to reveal that the "Triple Black" Ultra 4D surprise-released on the adidas CONFIRMED app just days ago. There has been no mention of a wider launch — at least for now — so if you're looking to cop, you'll have to hit the secondary market.

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