Fast, rugged and just as at home in the city as it is rocky trails, the Nike ACG GORE-TEX"Mountain Fly"is ready for whatever you throw at it. The lightweight upper uses GORE-TEX technology to help keep the weather out and has a gator for on-the-go personalisation. The sticky rubber outsole brings crag-inspired traction. Northwest Tested This product was designed and tested in Oregon, USA. The state's vast wilderness and climate has served as inspiration for our designs. Take on the Elements GORE-TEX product technology is a waterproof, breathable and microporous material that helps keep you dry. It's been integrated with the upper, helping you stay comfortable in wet conditions. Energy Returned This shoe's been built with the superlight and durable 4% Zoom Vaporfly Trail Frame. It's designed to deliver unbelievable comfort and underfoot cushioning so you can focus on the journey.