The Propulse is the model specifically designed for running: thanks to its ultra-light geometry, the Propulse offers a perfect and natural compression fit without any annoying pressure on the head. The end result is an extremely comfortable and stable goggle with integrated Hi-Grip temple ends and massive vents on the front chassis, lenses and temples to effectively prevent fogging. The wide lenses offer enhanced eye protection that minimizes the risk of tears while providing a deep field of vision.