WHOOPS REACTIV
Multipurpose sunglasses for all outdoor sports


From the first light of dawn to the last rays of dusk, clear vision is a must for adventurers and outdoor enthusiasts. Drawing on its rich expertise in optics, Julbo presents photochromic sunglasses for men, women, and kids: smart lenses that automatically adjust to changing light conditions. Whether you're scaling a mountain, trail running through the forest, or simply strolling through the city, our photochromic sunglasses provide exceptional clarity and unwavering protection. Dive into a world where technology, style, and performance come together to offer you the ultimate visual experience.
33 products
Multipurpose sunglasses for all outdoor sports
Endurance sport women's sunglasses with suspended lenses
High mountain men's sunglasses
Multipurpose men's sunglasses for all outdoor sports
High mountain sunglasses
High mountain men's sunglasses
Multipurpose sunglasses for all outdoor sports
Versatile women's sunglasses
Sunglasses for speed sports
Sunglasses for endurance sports
High mountain men's sunglasses
High mountain women’s sunglasses
High mountain sunglasses
Children's sunglasses | 8-12 years
Performance sunglasses for sports
High performance sunglasses for the mountains
Children's sunglasses | 8-12 years
Multipurpose sunglasses for all outdoor sports
Lifestyle sunglasses
High mountain sunglasses
Performance sunglasses with an ultra-thin design
Sunglasses with interchangeable lens with magnetic support
Glacier heritage sunglasses with modern features
Versatile sunglasses
Sunglasses for speed sports
Lightweight and versatile sunglasses
Multipurpose sunglasses for all outdoor sports
Versatile sunglasses
High mountain sunglasses
Multipurpose sunglasses for all outdoor sports
The ultimate sunglasses for mountaineering enthusiasts. Protection, style, and technicality combined to conquer the peaks.
Lightweight and ventilated sunglasses with enhanced grip, perfect for cycling and trail running with high-performance lenses
Versatile sunglasses designed to keep up with your active lifestyle, whether you need prescription lenses or not
Photochromic lenses are designed to change tint according to the intensity of ambient light. These smart lenses are made from special molecules that react to ultraviolet (UV) rays from the sun. The more UV rays there are, the darker the lenses become, and conversely, they lighten when UV exposure decreases.
The principle behind photochromic lenses is based on a chemical reaction involving photochromic molecules embedded in or on the surface of the lens. When exposed to UV rays, these molecules change structure, causing the lens to darken. Once UV rays are reduced or absent (for example, when you move indoors or as evening sets in), these molecules revert to their initial state, and the lens becomes lighter again.
One of the main benefits of photochromic lenses is their ability to automatically adapt to ambient light conditions. This provides constant protection from light and UV rays, without the need to switch between different pairs of glasses or lenses based on lighting conditions. Whether you’re in bright sunlight or shade, photochromic lenses ensure optimal vision and suitable protection.
The world of sunglasses is undergoing a revolution: photochromic lenses. With Julbo’s REACTIV technology, experience unparalleled vision in all weather conditions:
Thanks to our NTS Technology, our REACTIV lenses adapt regardless of temperature. At Julbo, we are constantly pushing the boundaries of innovation for your comfort.
At the heart of Julbo’s promise lies the perfect fusion of advanced technology and exceptional craftsmanship. Discover the technical features that make our photochromic lenses truly unbeatable.
Choose between polycarbonate and Trivex. Polycarbonate is lightweight and durable, while Trivex offers unparalleled optical clarity, combining thinness with impact resistance.
Our lenses are classified into different categories, suited to extreme or more moderate lighting conditions. The Visible Light Transmission (VLT) rate is a key indicator, ensuring optimal protection for each environment.
Every Julbo lens benefits from premium coatings to enhance your experience. Anti-reflective coating eliminates distractions, while the flash mirror effect provides a striking mirrored finish. Our lenses are also treated with anti-fog coating for consistently clear vision and oleophobic coating to resist smudges and make cleaning easier.
Innovation is at the core of Julbo. Integrated ventilation prevents fogging, ensuring uninterrupted clarity. The Grip Nose provides perfect hold, even in demanding conditions. And our Grip Tech temples offer exceptional comfort, adapting to any face shape while ensuring a secure fit.
At Julbo, every detail matters, and it is this attention to detail that positions us as leaders in the world of photochromic lenses. Choosing Julbo sunglasses means choosing the perfect combination of protection and performance.
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