Co Eyewear A Phase Z87 Photochromic Safety Glasses with Black Frame LENS:Photochromic Dark you can swap lenses in

you can swap lenses in seconds with the twist-and-pull knob and adjust or swap the nose piece to fit perfectly in any color

and trekking

and a quick 3-hour recharge via a USB-C port

With the addition of colorful red-green-blue morphing atmosphere lights and signaling red lights

Co Eyewear A Phase Z87 Photochromic Safety Glasses with Black Frame LENS:Photochromic Dark you can swap lenses inLight Adjusting Lenses That Work as Hard as You Do Our photochromic lenses adapt to changing lightso you dont have to. Indoors or in low light, they stay clear. Step outside, and they darken automatically to shield your eyes from the sun. No swapping glasses. No squinting. Just one pair that works all day, on and off the job. How it works: Reacts to UV light Darkens in direct sunlight Clears up indoors or in shade 100% UV protection, all the time