The NASA x adidas UltraBoost 20 'Black Carbon' rides on a micro-tuned Boost midsole tested in zero-gravity conditions, made possible by the German brand's partnership with the American space agency. Up top, the sneaker's black knit build incorporates Primeblue, featuring recycled high-performance materials made in part with Parley Ocean Plastic. The sneaker's adidas tongue tags are replaced by Artemis badges as a celebration of NASA's lunar mission program.