The Salomon Radium Prime Sigma Goggles are one of Salomons high-end goggle offerings for skiers looking for the ultimate in clarity and visibility. Sigma is an innovative lens solution developend by Salomon that apmlifies color contrast on snow, enabling the eye to instantly read terrain variations in a wider range of light. This really ocmes in handy when skiing top to bottom runs where the weather, light and terrain features can constantly change at a moments notice. From bluebird sun to flat light overcast, the Sigma Black Gold lens offers you a variety of clear vison regardless of what Mother Nature has in store for you. All salomon lenses filter out 100% of the sun’s UV rays for complete eye protection. The lese also uses salomon’s anti-gog tretament that offers four times more fog ressitnace to the lense than what other standard treatments would. All lenses are held in place with sixteen strong magnets that are startegically postioned to hold the lense securley in place, while rubber grips allow it to be removed without smudging. Its fool proof and extremly easy to use, even with mittens or gloves on. A Custom ID fit utlisizes adaptive foam and frame complexes for an advanced and anatomical fit, regardless of the shape of your face. A Max field of visiuon offers a wider lense thanks to the Radium’s low profle frame construction. The Salomon Radium Prime Sigma Goggles will get you “Primed” for a full day in the moutains so you can make the most of your a time well spent.