You can only scope your line if you can see where you're going. Putting on the Smith I/O MAG goggles is like flipping the switch from regular to widescreen. Our [Smith's] ChromaPop™ lens tech boosts color and contrast, so every wind lip, landing, and tree glade is as sharp as possible. It gets our highest level of anti-fog treatment and integrates with our helmets for airflow that keeps them fog-free through all weather conditions. Whether the day dawns clear or stormy, lens swaps are a snap thanks to our quick-swap MAG lens system. Because no two faces are the same, the I/O MAG S is scaled down to fit smaller faces. Why You'll Love It — We [Smith] took our best-selling I/O MAG goggles and scaled them down to fit smaller faces. Vision — Smith MAG lens change system uses magnets for quick, easy lens changes. Spherical Carbonic-x lens for distortion-free optics and impact resistance. 5X anti-fog inner lens for advanced fog-free performance. ChromaPop™ lenses enhance contrast and natural color to make the details pop. Provides 100% protection against UVA / UVB. Fit/Integration — Designed for ultimate integration with Smith helmets for maximum comfort, venting and fog-free performance. QuickFit strap adjustment system lets you find the right fit fast. Ultra-wide, silicone-backed strap stays put. Three-layer DriWix face foam wicks moisture for a fog-free fit. Responsive Fit frame adjusts to your face for a precise, comfortable fit. Women's medium fit. What's Included? — Includes two lenses. Microfiber goggle bag with replacement lens sleeve.