The ZX Flux was an already largely stripped back design when it hit the shelves back in 2014. Not ones to rest on their laurels, though, team adidas has improved on this fantastic design with the addition of new Techfit uppers. But what does this addition even mean? One slight issue with the original ZX Flux synthetic uppers was the flexibility, or lack thereof across the toes. After the first couple of generous wears, the uppers creased heavily at the lower eyelets. Techfit uppers will help eradicate that issue, creating a natural, flexible and seamless, sock-like fit – meaning all comfort and no crease, thanks to its stretchy form. Hopefully something that will be rolled out large scale across the Flux line, these snake-inspired joints are one of the first to feature the new uppers and are looking lean and mean, to say the least. Oneness is your source if you want to add these to your weekly rotation.