Reactiv 1-3 high-contrast photochromic lens: Automatically adjusts tint from low light to bright sun for optimal vision in rapidly changing conditions
Ultra-lightweight and agile frame: Ensures comfort and stability during high-intensity activities and long rides
Grip Tech temples: Provide secure, stay-put fit even on technical descents and during high-speed maneuvers
Panoramic lens design: Delivers a wide, unobstructed field of view to enhance depth perception and terrain awareness
Helmet compatible and trail running ready: Designed for use on both road and trail, supporting intense training and long-distance endurance
Lightweight and agile, the Intensity is made for athletes who move fast and need their vision to keep up—and the Kilian Jornet Series edition pairs that performance DNA with a colorway rooted in the Norwegian landscape Kilian calls home. The matte brown frame is accented with sandstone and glacier blue details that mirror the quiet, rugge
Frame Material
Not specified
Frame Color
Dark brown or light brown
Lens Color
Red
Lens Polarization
Non-polarized
Lens Pattern
Solid
Temple Color
Black
5.0
5 ratings
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I had prescription lenses put into these glasses. Amazing!
Great glasses. Super light. Don’t budge when mtn biking. And the lenses are incredible!
T
Tom · October 24, 2026
Great Option
Love these! They are super light weight and barely noticeable on runs. The reactive lenses get the job done in lots of conditions, and they look super rad as well! Highly recommend.
R
ROBINSON · June 2, 2026
Great glasses
I wear my Intensity glasses year round - road cycling and mountain biking in the summer and Nordic skiing and snowshoeing in the winter. The sunshine and cloud cover can change quickly but with my Intensity KJs I’m always prepared.