Smith 4D Mag Goggle frames represent the culmination of over 50 years of innovation, performance, quality & style! Smith 4D Mag goggle frames feature the newest ChromaPop lens technology with 25% increased field of vision- Birdseye Vision!. Smith ChromaPop lenses w Birdseye field of view pack more style & performance that any skier or rider could possibly need. Go ahead and pick up a pair from Action Sport Optics, a trusted leader in sport & lifestyle optics.
Fit Profile: The Smith 4D Mag Goggle has a recommended fit profile of Med - Large.
Frame information: The Smith 4D Mag uses a flexible polyurethane frame material that  is designed to work in unison with different face shapes & sizes. Smith goggles use a unique urethane compound that maintains flexibility even in the coldest of temperatures. Triple  layer Dri-Wix face foam comes standard on all high end Smith Goggles and provide a very plush & customized fit. The straps on Smith 4D Mag are quick release adjustable and are lined with a silicone on the inside to prevent helmet slippage.
Smith Mag Lens Change System:  Smith Mag lens interchange simply put the easiest & most secure lens interchange systems to hit the market that allows you to react to changing light conditions at a blink of an eye. Asdfv magnectic system guides the lens into place with 8 magnets & the dual locking mechanisims lock the lens in place eliminating the chance of a lens pop out.  If you're looking for the quickest & most secure lens interchange system the Smith Mag system is at the top of the class.
Smith Birdseye Vision: 25% increased field of view of the I/O Mag, unique lens curvature on lower portion of the lens opens up your field of view.
Lens information: Smith Goggles provide the most technically advanced lenses in the world that protect you from harmful UVA-UVB-UVC rays.  Smith 4D Chromapop have a spherical interchangeable lens that swaps out quickly & easily. The TLT ( Tapered Lens Technology ) lens technology provides perfect vision in all conditions by straightening out the in coming light rays by tapering them from the center out to your peripheral view providing 100% clarity & accuracy. The Hydrophobic lens coating Smith Optics uses is a durable bonded coating that reduces smudges & increase scratch resistance. Smith Goggles set the standard with their Carbonic-X Lens which meets ANSI Z80.3 lens quality standards, there simply is no better lens available.  
Smith Chromapop Information: Smith Chromapop lenses deliver  the super lens of the future with revolutionary technology that puts Smith in a class of its own.  Smith Chromapop is engineered to deliver the ultimate in clarity, protection, impact resistance& when you purchase Smith I/O Chromapop you are investing in the best lenses that the industry has to offer with the ultimate in clarity & protection from harmful UVA UVB UVC rays.
Why Are Smith Chromapop Lenses Better?:  Smith Chromapop Goggle lenses deliver detail and color beyond normal capabilities by filtering 2 wavelengths of light that cause color confusion to your eyes.  This technology delivers the ultimate true clarity experience.

SMITH 4D Mag Chromapop Lens / VLT Guide

• ChromaPop Sun Red Mirror:  16% VLT, your best lens choice for bright conditions.
• ChromaPop Photochromic Rose Flash:  30-50% VLT transition range, tint changes automatically with changing light conditions, the ultimate multi tasking lens!
• ChromaPop Photochromic Red: 20-40% transition range, tint changes automatically with chaning light conditions, the ultimage multi tasking lens!
• ChromaPop Everyday Sun Red Mirror: 25% VLT, your best lens option for sunny to slight variable conditions.
• ChromaPop Sun Platinum: 13% VLT, great lens choice for sunny conditions.
• ChromaPop Sun Green Mirror: 9% VLT, great lens choice for sunny condtions.
• ChromaPop Everyday Green Mirror: 23% VLT, great performance for slight variable condtions, sun to medium mixed light.
• ChromaPop Sun Black: 12% VLT, great lens choice for sunny condtion.
• ChromaPop Storm Rose Flash: 50% VLT, grea low light lens, included as bonus lens in most frame options

Bonus Lens Included:  Yes, every Smith 4D Mag Goggles comes with a bonus lens included. Your based are covered with 2 lenses for both sunny & low light conditions.
About Smith Optics: Smith Optics is a leading supplier of the worlds best optics for skiing, snowboarding, and active lifestyle sunglasses.  Smith Optics makes great days better, and for over 45 years has been the innovation leader with the single goal of making days on the mountain the best it can be.