Adaptive Clarity. Uncompromised Speed. Photochromic Sunglasses by 100Percent®

Out on the trail, light conditions can change as fast as the weather. The last thing you need is a cloud dictating your ride quality, or safety. When carrying a spare lens with you simply isn’t an option, Photochromic is the answer.

100Percent® Photochromic lenses feature a reactive pigment inside that senses the intensity of the UV light around you—always evolving your lens tinting to match the light conditions. 

Rather than manually swapping lenses, choosing our Photochromic lenses has the ability to transition from a Category 0 to a Category 3 tinted lens in less than fifteen seconds—all while never taking your hands off the handlebars.

What is Photochromic Technology?

Simply put, a photochromic lens is designed to adjust its tint based on the amount of UV light it's exposed to. As the sun gets brighter, the lens darkens automatically. As you drop into the shade or the sun dips below the horizon, the lens will transition to a virtually clear state. This all happens seamlessly in a matter of seconds, so you never have to think about it.

Photochromic is one dynamic lens that automatically adjusts to any light condition you encounter.

 

“When you use the word ‘riding,’ you make a direct connection with this idea of adapting instantly,” says pro mountain bike rider Kilian Bron. “You adapt your position, your speed, your movements, and your riding style based on all the elements, in real time. The glasses I wear have to follow the same approach, adapting quickly to the elements.”

 

The Freedom of One Lens

This technology is a game-changer for athletes who face variable conditions. With a single pair of sunglasses, you can tackle an overcast morning, navigate a densely shaded trail, or stay out for an extended ride that ends after dark.

“I ride a lot in the French Alps [where] the trails often alternate between open and wooded areas, where the light conditions change dramatically,” says Bron. “I don’t need to ask myself which model or lens type to choose. [I know Photochromic works] in all conditions.”

No Second Thoughts

The convenience of a single lens means you can stay focused on the ride, not your gear. You get the perfect amount of protection and the clearest vision at every moment, from the first light of dawn to the last-light push into dark.

Shop Kilian Bron's Favorite Pair: The Slendale Photochromic

 

“With Photochromic, I [know] I’m seeing as if there’s no filter at all darkening my vision,” says Bron. “And on top of that, I’m protected from wind and potential impacts.”

 

FAQ’s

Question: What are photochromic lenses?

Answer: Photochromic lenses are lenses that automatically change their tint in response to exposure to ultraviolet (UV) light. They will darken in bright sunlight and become lighter when you move indoors or into the shade.

Question: Why should I choose photochromic lenses?

Answer: Photochromic lenses offer a single, versatile solution for all light conditions. You get the convenience of one lens that automatically adjusts to your environment, eliminating the need to carry and swap out multiple lenses. This is ideal for rides that begin in low light and end in full sun, or for trails with constantly changing tree cover.

Question: When is the best time to use Photochromic?

Answer: The best time to use photochromic lenses is during activities with constantly changing light conditions. This includes early morning or late afternoon rides, trails that move in and out of heavy tree cover, or any day with variable weather. They are designed to adapt so you don't have to.

Question: What are the best sports to use Photochromic lenses?

Answer: Photochromic lenses are ideal for outdoor sports where light conditions can change rapidly. This includes mountain biking, trail running, as well as road and gravel cycling. 

Question: How fast do photochromic lenses change tint?

Answer: Photochromic lenses react very quickly to a change in UV light. The transition from a darker tint to a lighter one—and vice versa—is typically seamless and happens in approximately 15 seconds.

Question: Do photochromic lenses work in my car?

Answer: Most modern car windshields are designed to block UV light. Because photochromic lenses activate in response to UV rays, they will not darken inside a car.

Shop 100Percent® Sport Performance Sunglasses with Photochromic Lenses