Available in a massive selection of weather-specific tints, the 509 Sinister X6 Lens gives you every option imaginable to adjust your 509 Sinister X6 Goggle for any condition. Change-outs are easy thanks to the Fast Lens Loading System, and with the X6’s super wide field of view, you see more of your surroundings. Like all 509 lenses, the X6 lens features industry-leading optics for the ultimate in anti-fog and anti-scratch performance coatings.