Photochromic glasses are great for things like heading out on evening bike rides, as their tint gradually lightens while the sun goes down. If you’re bursting in and out of shadowy forests or zipping through dark tunnels, however, the slow reaction time of such glasses just can’t keep up. That’s where Uvex’s Variotronic glasses come in, which use electrochromic tech to change tint in just a tenth of a second. I recently got to try a pair out, and there’s nothing shady about them.
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