MACH Gs are a classic aviator style made to give you the speed if you feel the need. Plus, this smooth, sleek frame means no unsightly imprints on your nose from those weird nose pads on traditional metal aviator frames. NO SLIPSpecial grip coating and silicone nose inserts to construct the frame to help eliminate slippage when sweating. NO BOUNCEFrame is flight-weight to prevent bouncing when running, biking, beasting, or exceeding speeds of Mach 5. ALL POLARIZEDThe speed of light got nothing on you. These glare-reducing, polarized lenses with UV400 protection blocks 100% of those harmful UVA and UVB rays. ALL SPEEDAn all new shape built to give you the ultimate speed advantage whether you're crushing beers or crushing your competition.