When on the sled, wear the 509 Sinister X7 Snowmobile Goggles. Designed for extreme outdoor adventures, these snowmobile goggles provide a wide field of view that won't fog up no matter the weather conditions. The adjustable straps and triple-layer foam lining provide a comfortable and secure fit, even during high speeds. Plus, the magnetic quick-change lens system makes it easy to adjust your lenses as needed. With its stylish design and advanced performance features, the 509 Sinister X7 is the ultimate accessory for your next snowmobile ride.