By virtually eliminating lens fogging. The ESS Influx™ goggle allows users to maintain full situational awareness in dynamic environments. As part of the goggles patented Adjustable Ventilation System™ AVS™, the Influx RotoClip™ silently pivots the position of the lens inside the goggle frame choose either a dust-free, fully-sealed mode, or a fog-free, open-ventilation mode. With Influx™ users can always see clearly and act fast when seconds count. Additionally, this goggle has a fleece-lined, moisture-wicking, face foam for ideal comfort, warmth, and performance in cold weather. Advanced ESS ClearZone FlowCoating eliminates fog inside & prevent scratches outside. The goggle kit includes three interchangeable distortion-free 3.0mm high-impact Polycarbonate Lenses, Alpenglow, Clear and Smoke Gray. 100% UVA/UVB protection.