Matthew Williams is famous for his technical approach to design, and that’s a passion shared by Nike, too. Their latest collaboration is a celebration of just that, and technical is certainly the best way to describe this jacket. For starters, you can wear it as both a jacket and a vest, with its sleeves and hood fully removable. Then there are packs at the chest which can be frozen — inspired by Nike’s Precool gilet — to ensure you don’t overheat during intense workouts. In case that wasn’t enough, there are GORE-TEX panels throughout, as well, to keep you dry during those unexpected city downpours.