Julbo Shield M Reactiv High Mountain 2-4

Designed for serious mountaineers and alpine climbers, the Julbo Shield M Reactiv High Mountain 2-4 sunglasses are engineered for the extreme brightness of high-altitude glaciers and the variable light encountered during technical ascents. They are an essential piece of kit for Himalayan expeditions, ski-mountaineering, and long alpine routes, providing essential eye protection against harmful UV and intense reflected light. Their ventilated frame and full-coverage design with removable side shields are specifically developed for active use in harsh conditions, from the intense glare on high snowfields to windy, exposed ridges. This combination of adaptive optics and robust design makes them a versatile and critical tool for any serious mountain professional or enthusiast.

Key Features

• REACTIV 2-4 Photochromic Lenses: Lens Visible Light Transmission (VLT) rate automatically adjusts from 5% (Category 4) in bright sun to 20% (Category 2) in lower light, eliminating the need for multiple lens sets.

• Polycarbonate Lens & Anti-Fog Coating: Lenses are made from polycarbonate, known for its scratch resistance and robustness, and include an internal anti-fog coating for clear vision during high-exertion activities.

• Air Flow Ventilation System: Integrated vents in the frame promote air circulation to significantly reduce the potential for lens fogging.

• Removable Synthetic Side Shields: Soft, spandex side shields provide full peripheral light and debris protection for high-altitude conditions and can be easily detached for versatility.

• Grip Tech Temples: Soft, rubberized temple arms provide a secure, non-slip fit that resists slipping due to sweat or movement, and do not stick to hair.

• Nose Grip: Flexible, shock-absorbing rubber inserts on the nose bridge increase comfort and ensure a stable, non-slip fit.

• Cord Attachment Points: Temples are shaped to work perfectly with the included silicone cord, keeping the sunglasses secure in all conditions.

Key Points

• Over 130 Years of Mountain Expertise: Julbo has specialized in mountain eyewear for over a century, with this model built on deep technical knowledge for high-altitude environments.

• Industry-Leading Photochromic Technology: The REACTIV lens series is recognized for its exceptional performance and is widely considered a benchmark for adaptive lenses in outdoor sports, offering seamless visual clarity and protection.

• Suitable for Driving: While many Category 4 glacier glasses are too dark for legal road use, this model’s photochromic adjustment to a Category 2 VLT makes it suitable for wear in a wider range of conditions, including driving.

• Unisex Design with Classic Mountain Aesthetic: The Shield M offers a modern, square-frame design that moves away from the purely technical look of traditional glacier glasses, making them suitable for everyday wear and mountaineering.

• Lifetime Warranty on Manufacturing Defects: Julbo offers a lifetime warranty to the original owner covering defects in materials and workmanship, underscoring their confidence in product durability.

Technical Specifications