DESCRIPTION

If you spend time outside, you know how important protecting your eyes from damaging light is, but so is being able to see when light is at a minimum. Zeal Optics made the Tensai Sunglasses with durable, polarized, photochromic lenses that transition from 13-28% visual light transmission. So whether you're hiking in blistering sun or mountain biking through densely wooded areas, Zeal's NXT lenses lighten or darken depending on the conditions.