Sunglasses - TestJulbo Intensity - self-tinting flyweight

Stefan Frey

 · 21.07.2025

Ultralight but also really good? In our test, the Julbo Intensity has to show whether it has what it takes to be a sporty all-rounder
Photo: Stefan Frey

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With its sporty design and contrast-enhancing lenses, the ultra-light Julbo Intensity aims to attract sporty bikers in particular. Our test clarifies whether the Julbo lives up to this claim.

The Intensity from the French manufacturer is the ultra-lightweight in our test with a total of 14 photochromic sunglasses. No other sports goggles come close to the 18.7 grams of the Julbo. If you're looking for a touch of nothing for your nose, you could be on the right track here.

Julbo makes a few compromises to achieve the low weight. For example, the mono lens is slightly narrower than on many other models. The temples are particularly delicate and the Intensity does not have an adjustment option - either on the temples or on the nose bridge. You should therefore definitely try on the Julbo before buying.

The nose bridge is rubberised but not adjustable and therefore does not always fit perfectlyPhoto: Stefan FreyThe nose bridge is rubberised but not adjustable and therefore does not always fit perfectlyThe delicate temples cannot be adjusted either, but fit comfortably on the headPhoto: Stefan FreyThe delicate temples cannot be adjusted either, but fit comfortably on the head

The Intensity comes with a standard soft case and goggle bag - that's it. The nose pads and temples are lightly rubberised and sit comfortably on the head. The Julbo also sits quite securely on a medium-width nose bridge. There is sufficient face coverage towards the cheekbones, with only a slight draught blowing behind the lens at the sides. Small ventilation slits on the top of the lens provide additional ventilation. These are not really necessary, as the Julbo's anti-fog coating works quite reliably.



The scope of delivery corresponds to the standard: glasses case and microfibre bagPhoto: Stefan FreyThe scope of delivery corresponds to the standard: glasses case and microfibre bag

Contrast-enhancing filters from category 0

We think it's great that the tinting of the Reactiv lens starts at category 0. This means that the Julbo is still suitable for driving in low light conditions. We were also impressed by the tinting because it - similar to the Evil Eye Trailsense II - does not change to grey, but rather to a slightly reddish tone and thus enhances the contrasts on the path.

The Julbo only brightened by just under 18 per cent after 30 secondsPhoto: Stefan FreyThe Julbo only brightened by just under 18 per cent after 30 seconds

In our laboratory test, however, the Julbo did not perform quite as well. While the Intensity darkens quite quickly, it brightens up again only hesitantly and therefore only lands in the bottom third.

The reddish tint enhances the contrasts on the trail and starts at category 0Photo: Stefan FreyThe reddish tint enhances the contrasts on the trail and starts at category 0

Thanks to its half-frame construction and very narrow frame, the Intensity offers an excellent field of vision. Combined with the low weight, you'll want to reach for the glasses when you're out and about to make sure that the Julbo is really still there. Sensitive sportspeople may be a little bothered by the delicate temple tips and narrow nose bridge, which offer little contact surface. Otherwise, despite its low weight, the Intensity has enough resilience to sit firmly on the head.

Due to the somewhat smaller and, above all, narrower and less curved windscreen, a relatively large amount of draught gets past the sides and bottom of the Julbo. When travelling at speed, a tear or two can run down the windscreen. On the other hand, the Julbo is quite well protected against fogging. Thanks to the slightly airier fit and the good anti-fog coating, we at least had no problems in this respect.

Julbo Intensity - Info & Price

Light, sporty, contrast-enhancing - the Julbo only loses out in terms of wind protection and tinting speedPhoto: Stefan FreyLight, sporty, contrast-enhancing - the Julbo only loses out in terms of wind protection and tinting speed
  • Price: 214,90 Euro >> available here
  • Made in: EU
  • Weight: 18,7 g
  • Width / temple length: 142 / 130 mm
  • Nose bridge width / lens height18 / 56 mm
  • Adjustability: none
  • Filter colour / filter class: red-orange / 0-3
  • Light transmission measured: 86 - 16 %
  • FitMedium width, narrow to medium nose bridge
  • Equipment / special featuresSoft case; microfibre bag / front ventilation
  • Alternatives: 4 frame and filter colours

Evaluation & conclusion

Slow tinting and no adjustment options are two shortcomings of the otherwise good Julbo IntensityPhoto: Stefan FreySlow tinting and no adjustment options are two shortcomings of the otherwise good Julbo Intensity

With this flyweight, you often wonder whether you are really wearing glasses. But this is also due to the unrestricted field of vision. The high-contrast reddish tint is also great. The Intensity is stable and comfortable - but it has to fit, as there are no adjustment options. The self-tinting Julbo lens only clears up slowly and lets some wind through at the sides. Good anti-fog protection!

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Stefan Frey is from Lower Bavaria and loves the mossy, loamy trails of the Bavarian Forest as much as the rugged rock of the Dolomites. For technical descents, he is prepared to tackle almost any ascent - under his own steam. As an accessories specialist, he is the first port of call for questions about equipment and add-on parts, while as head of copywriting he sweeps the language crumbs from the pages of the BIKE print editions.

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