A lens that adapts to all trails.
Clear in the shade, dark in the sun. EVO+™ photochromic lens changes tint on its own.
Choose my pairWhy photochromic on the trail
-
01
Automatic tint adjustment
Light in the shade, dark in the sun. You don't have to do anything.
-
02
20 to 30 seconds to darken
60 to 90 seconds to lighten up in the shade.
-
03
A single lens
From start to finish, without changing glasses.
-
04
UV400 protection, S0 to S3
From undergrowth to full sun, 100% UV blocked, in any shade.


Test your lens
Pick a shade. Slide from direct sunlight to cover to watch the lens react.
Two frames, one EVO+™ lens


The same EVO+™ lenses on both frames. You choose the shape, the lens follows the light.
Choose my pairHow does that work
Integrated into the mass of the lens, not on the surface.
In 20 to 30 seconds. Without doing anything.
In 60 to 90 seconds. A single lens for the entire trail.
Verified reviews
Very comfortable glasses and the lens that adjusts with the sunlight, it's perfect.
They stay in place very well thanks to the nose adjustment and they're really comfortable. Visibility is excellent.
Frequently Asked Questions
Does the lens adapt under tree cover
Yes. The lens darkens in 20–30 seconds in the sun and lightens in 60–90 seconds in the shade. Under dense cover, it remains clear, and you can see the trail.
Does it fog up on the way up
The lens is ventilated and anti-fog treated. When completely stopped after a major effort, a mist may appear for a few seconds; it disappears as soon as you start moving again.
STRYVE II or KOVO
STRYVE II has adjustable temples and fits all face shapes and sports. KOVO has ultralight fixed temples at 27.7 g, maximum coverage and a 1990s design. Both use EVO+™ lenses.
Which EVO+™ shade to choose
MIST covers the widest range, from S0 to S3. It is the default choice for trails. FOREST is designed for tree cover, FLAME for low, contrasting light, and AURORA for bright light.
Returns and warranty
30 days for a refund or exchange. 2-year warranty on the frame. In the event of breakage during sports, SPEK Protection gives you 40% off the same pair.
