Nike Air Force 1 Vac Tech PremiumNike created an extremely crisp and clean sneaker with the Nike Air Force 1 Vac Tech Premium. They feature Vac Tech construction, which creates a sophisticated, virtually seamless, unibody upper similar to the Air Force 1 Foamposite. Plus, this clean upper sits on top of a translucent white sole unit. Yet another Nike creation that's a stylish success.