Photochromic Sports Sunglasses for Hiking and Cycling

The annoying thing about riding or hiking into the evening is that your sunglasses become the problem. Bright at noon, too dark by seven, and you either squint through them or stop and swap them out. These lenses sort it out themselves. They react to UV, so the stronger the light, the deeper the grey goes, and they lighten off again as the sun drops.

That means one pair covers a whole day out. Under trees on a climb they sit close to clear, out on an open ridge or a hot stretch of road they go dark, and you never think about it. They block UV, which counts for more at altitude and on water than most people assume. The wrap shape cuts wind, so your eyes stop streaming on a fast descent, and it keeps grit and blown sand out on beaches and dry trails.

These are built as sports eyewear rather than fashion frames, so they sit close to the face and stay put when you are moving. Beyond the photochromic grey there are fixed-tint options, including grey, blue mercury and gold mercury lenses in black or white frames, plus a two-pack if you want one in the car and one in the bag. Unisex fit, and light enough that they do not press on your temples after a few hours.

• Photochromic lenses darken as UV rises and clear again when the light drops off.
• UV protection for long days on open water, snow and high ground.
• Windproof wrap shape stops your eyes watering on fast descents.
• Sand-resistant coverage keeps grit out on beaches and dusty trails.
• Fixed-tint options in grey, blue mercury and gold mercury if you prefer a set shade.
• Two-pack option so you can keep a spare pair in the car or the pack.