About NO SLIP - Special grip coating and silicone nose inserts to construct our frame to help eliminate slippage when sweating NO BOUNCE - Frame is flight-weight to prevent bouncing when running, biking, beasting, or exceeding speeds of Mach 5* (*Not tested at hypersonic speed, but…Goodr are pretty sure) ALL POLARISED - The speed of light got nothing on you. These glare-reducing, polarised lenses with UV400 protection blocks 100% of those harmful UVA and UVB rays ALL SPEED - An all new shape built to give you the ultimate speed advantage whether you're crushing beers or crushing your competition Purple Gradient Lenses - Dark-to-light tint blocks overhead rays and increases ground visibility Description Purple Gradient Lenses Want to harness the power of the moon on your next run? Grab these light blue Mach Gs with purple gradient lenses, charge your tank with a burst of lunar energy, and get ready to blast off and outrun the stars. NO SLIP - Special grip coating and silicone nose inserts to construct our frame to help eliminate slippage when sweating NO BOUNCE - Frame is flight-weight to prevent bouncing when running, biking, beasting, or exceeding speeds of Mach 5* (*Not tested at hypersonic speed, but…Goodr are pretty sure) ALL POLARISED - The speed of light got nothing on you. These glare-reducing, polarised lenses with UV400 protection blocks 100% of those harmful UVA and UVB rays ALL SPEED - An all new shape built to give you the ultimate speed advantage whether you're crushing beers or crushing your competition View All Goodr Sunglasses MPN GO-607578