The newest addition to Oakley's 'Line Series', the Fall Line XM exceeds all expectations. Inspired by the Line Miner, this rimless goggle offers a wide view of the earth around you with the Cylindrical Style Lens. Being able to adapt to a variety of faces, the medium-sized Fall Line XM has been engineered to work seamlessly with most helmets and includes a 50mm strap with silicone backing to prevent any slip so you don't have to worry when ripping down the front face. Oakley's Ridgelock Technology grants you with the ease of pushing a button so you can swap out the lenses as quickly as the weather changes. Prizm Lens Technology provides optimized contrast and color so there's no guessing what's ahead of you on the mountain. An ultra-soft 3D face foam creates a breathable and moisture-wicking barrier between your vision and the elements, while discreet notches on either side allow for most prescription eyewear to be worn under the goggles without compromising performance. The Oakley Fall Line XM Goggles may be new this year, but they'll live on for years to come. Ridgelock Lens System for Easy Lens Change, Rimless Lens, Optically Correct Cylindrical Lens Design, Medium-Sized Fit, Discreet Frame Notches at Temple for Compatibility with most RX Eyewear Frames, F3 Anti-Fog Coating, Triple-Layer Face Foam w/Polar Fleece Lining, , Race: No, Category: Adult, OTG: Yes, Helmet Compatible: Yes, Spare Lens Included: No, Goggle Ventilation: Medium, Goggle Lens Change: Easy.