SPY Ace Snow Goggle Goggles The free bonus lens and Quick Draw lens change system put the midsized Ace at the top of the deck. In volatile conditions, you can easily slide the bonus high-visibility lens into place and quickly return to the actionwithout losing time to Mother Nature wicked ways. Our patented Happy Lens Tech enhances color and contrast and is scientifically tuned to boost mood and alertness, providing a visual experience unlike anything else Anti-fog injected SIC (Superior Injected Curve) dual-lens maintains lens shape for optical clarity Quick Draw lens change system allows you to change lenses on the fly Comes with a free premium bonus lens so youre covered in any light conditions Anti-scratch coating provides enhanced impact protection 100% UV protection shields your eyes against damaging high-altitude sunlight Custom built from flexible, durable polyurethane for seasons of use Scoop ventilation system increases air flow and decreases fog-causing sweat and moisture Triple-layer Isotron face foam with moisture-wicking Dri-Force fleece provides comfort while drawing fog-causing sweat off your face Compatible with the most popular helmets on the planet Silicone-lined strap prevents the goggle from slipping on your helmet or headwear