Julbo FASTER L Kilian Jornet REACTIV Sunglasses - Black/Red, Photochromic 2-4

High-speed trail running and mountain sports demand eyewear that keeps up with rapid light changes and intense movement. The Julbo FASTER L Kilian Jornet REACTIV sunglasses solve this with photochromic lenses that automatically adjust from category 2 to 4, ensuring clear vision from forest shade to alpine glare without swapping lenses. Developed with legendary mountain athlete Kilian Jornet, these sunglasses deliver a secure fit, full ventilation, and rugged durability for uncompromising performance.

Who is it for

Trail runners, mountain bikers, mountaineers, and ski tourers who need reliable eye protection in variable light. The large fit suits wider faces, while the lightweight frame and grip technologies keep the glasses stable during high-output activity. Unisex design and athlete-tested features make them ideal for serious outdoor enthusiasts.

Main features

• REACTIV Performance 2-4 photochromic lens: adjusts from category 2 (partly sunny) to 4 (intense sun), with VLT 7%–35% for optimal contrast and protection.
• NXT (Trivex) lens material: lightweight, impact-resistant, and optically clear, with anti-fog and oil-repellent coatings for clear vision in all conditions.
• Full venting system: strategically placed vents allow airflow to prevent fogging during high exertion.
• 3D Fit Nose pads and Grip Tech temples: customizable, non-slip fit that stays put on rough terrain.
• Grilamid TR 90 frame: flexible, durable, and resistant to temperature extremes, with black and red accents for a bold look.
• 100% UV protection: blocks harmful UVA, UVB, and UVC rays for long-term eye health.

Specifications

• Lens width: 66 mm
• Bridge width: 13 mm
• Temple length: 125 mm
• Base curve: 8
• Frame material: Grilamid TR 90
• Lens material: NXT (Trivex)
• Photochromic range: Category 2 to 4
• Visible light transmission: 7% - 35%
• UV protection: 100% UVA, UVB, UVC
• Fit: Large
• Gender: Unisex
• Intended use: Trail running, mountain biking, mountaineering, ski touring
• Athlete collaboration: Kilian Jornet

Tips

To maintain lens performance, rinse with clean water after use in saltwater or dusty environments and dry with a microfiber cloth. Store in the provided case when not in use to prevent scratches. Adjust the nose pads and temples for a personalized fit before high-speed descents.