mens size 12 nike shox Nike’s outdoor-going ACG division, the Mountain Fly GORE-TEX, is built to withstand anything Mother Nature puts in its path. And it’s especially true with this khaki brown pair, thanks to the waterproof GORE-TEX uppers and a sock-like cuff that keeps out all the usual trail debris. The underfoot tooling follows suit, with a full-length carbon fibre concoction, from the Vaporfly 4%, providing stability and React foam cushioning each step.