How to choose your trail running sunglasses?
Trail running is a demanding, endurance-based, and technical discipline. Hold your equipment to the same standard! Too often dismissed as just a fashion accessory, sports sunglasses, beyond aesthetics, can actually be a true performance booster during your mountain runs.
WE’LL HELP YOU SEE THINGS MORE CLEARLY!
LIGHTWEIGHT TO FORGET YOU’RE WEARING THEM
One of the main criteria when choosing your trail running sunglasses should be lightness. In our Fast & Light range, our frames weigh between 22g and 38g, light enough to forget you’re wearing them from the very first to the very last kilometre. But lightness isn’t everything: for optimal performance, choosing the right lens is just as crucial.
REACTIV PHOTOCHROMIC LENSES: IN ANY WEATHER
At Julbo, our answer for photochromic lenses is called REACTIV. One technology, one goal: to let you set off with a single pair of sunglasses, whatever the conditions. Open ground, forests, sun, clouds, overcast skies… REACTIV adapts constantly so you never have to think twice.
Our REACTIV lenses respond to UV and activate when exposed.
The stronger the sun, the darker the lens becomes, likewise, it lightens when needed, all in just moments, with no action required from you!
The photochromic pigments are fused into the very heart of the lens during manufacture, making them unalterable over time: even if scratched, they continue to adjust to changing light with the same precision as on day one. That’s why we provide a lifetime guarantee on the photochromic performance of our lenses, their ability to adapt to varying light over time.
The REACTIV range offers 8 lenses covering protection categories 0 to 4, to adapt to any condition: from trail through wooded areas to high mountain sun. For trail running, two lenses stand out in particular:
- REACTIV 1-3 Light Amplifier: Boosts light for greater visibility, ideal for trail in all conditions
- REACTIV 0-3: Crystal clear vision from day to night, ideal for long outings and ultra-trails
VISUAL FATIGUE DURING EXERCISE
During an intense event like an ultra-trail, your eyes are put through the wringer: wind, sun, cold temperatures that can cause irritation or dry your cornea, glare, dust, insects… All factors that disrupt your vision, cause eye fatigue, and noticeably impact your performance.
Wearing suitable sunglasses is a real race advantage. Our REACTIV lenses, with their constant adjustment to brightness and optimal eye coverage, keep you focused and performing at your best from the first kilometre to the last, whatever the weather.
ANTI-FOG TREATMENT
On the trail, every detail counts. That’s why our REACTIV photochromic lenses (except for those using Glare Control technology) feature an internal anti-fog treatment, giving you clear, distraction-free vision from the first to the last kilometre.
REACTIV 1-3 Light Amplifier
RENEGADE REACTIV
Multipurpose men's sunglasses for all outdoor sports
REACTIV 1-3 Light Amplifier
OUTLINE REACTIV
Multipurpose sunglasses for all outdoor sports
REACTIV 1-3 Light Amplifier
INTENSITY REACTIV
Lightweight and ventilated sunglasses with enhanced grip, perfect for cycling and trail running with high-performance lenses
REACTIV 0-3
FASTER M REACTIV
Ultra-light, streamlined sunglasses designed for narrow faces seeking performance
REACTIV 1-3 Light Amplifier
FASTER L REACTIV
Ultra-light wraparound sunglasses, ideal for running, riding, or skiing
REACTIV 0-3 High Contrast
LIRY REACTIV
Technical sunglasses with front ventilation and a secure, precise fit
REACTIV 1-3 Light Amplifier
FURY REACTIV
Sunglasses for speed sports
A TECHNICAL FRAME FOR A SECURE FIT IN ALL CONDITIONS
What do we mean by a technical frame?
It's all the details that ensure comfort and a secure fit. From the choice of materials to prevent slipping, to the design of the arms, frame, or nosepiece, technical features really matter. Our frames are designed to be forgotten during activity: they are light, adaptable, slim, technical, and non-slip. All have slim, non-slip arms, perfect for wearing under a beanie or on a headband.
Trail running is full of jolts and bumps, but thanks to non-slip arms, your sunglasses won’t move at every step. And with an adjustable nosepiece, you’re guaranteed optimal fit whichever your face shape.
YOUR SIGHT SHOULDN’T HOLD YOU BACK
“Poorly corrected vision leads to physical compensations and increased visual fatigue. Proper correction enhances comfort, posture, and efficiency during exertion.”
Didier Colnot, physiotherapist-osteopath to David Gaudu
FOR THOSE WHO WEAR PRESCRIPTION GLASSES, PERFORMANCE COMPROMISE ISN’T AN OPTION
Custom correction directly incorporated in the lens transforms your vision into a true on-trail asset:
- More accurate terrain reading
- Sharp vision, even on the move
- Wider field of view
- Long-lasting comfort during effort
How do you get sunglasses adapted to your prescription?
Your prescription sunglasses cannot be purchased online. They are made through a Julbo partner optician to guarantee equipment perfectly suited to your correction and your activity:
- Choose your frame
- Select your lenses
- Get a price estimate
- Find an optician on our store locator map
