Prescription Glasses with Photochromic Lenses for Mountaineering and Mountain Sports

For those who, like DEMON, love the mountains, it’s more than just a passion it’s a true way of life.
However, whether you’re a professional athlete or an outdoor enthusiast, there are times when reading instruments, maps, or simply seeing the trail clearly can become a challenge.

That’s why DEMON created OUTDOOR, the photochromic prescription eyewear specifically designed for mountaineering and mountain activities.
Equipped with photochromic category 2–4 lenses and a removable optical clip where your trusted optician can easily fit your prescription lenses, OUTDOOR redefines performance and versatility for vision correction in extreme environments.

A Revolution in Mountain Eyewear

This new model marks a true evolution in sports eyewear.
Its wraparound frame blocks light from entering laterally, ensuring maximum protection and visual comfort, while the wide removable clip provides superior peripheral vision compared to standard inserts and significantly reduces the cost of prescription lens customization.

OUTDOOR represents the ultimate photochromic prescription glasses for the mountains, designed for those who want the highest level of technical performance without compromise.
Built to protect your eyes in the harshest conditions especially on glaciers and high-altitude terrains with intense glare these glasses are also ideal for trekking, hiking, and ski mountaineering, where UV radiation is particularly strong.

Technical Features and Use

The OUTDOOR prescription eyewear for mountaineering guarantees full protection against intense UV radiation and provides crystal-clear vision through unbreakable polycarbonate lenses (category 4).
The photochromic 2–4 lenses with anti-fog coating represent the top of the line for anyone practicing mountaineering or high-altitude sports.

Unlike standard photochromic lenses, DEMON’s 2–4 lenses start from category 2 and darken up to category 4 under intense exposure to UVA and UVB rays.
This means you get perfect clarity in shaded areas and maximum protection under strong sunlight adapting seamlessly to every change in light along your route.

Whereas a traditional category 4 lens may feel too dark in shaded forests or near rock faces, the photochromic lens stays clear in low-light conditions, ensuring optimal vision and awareness of obstacles, and automatically darkens in bright light for total protection particularly useful on glaciers or snowy surfaces.
The result: superior comfort and flawless visibility in all mountain environments.

Advanced Materials and Comfort

The ultra-lightweight TR90 frame a special blend of nylon and carbon fiber makes the OUTDOOR 20% lighter than traditional materials while offering exceptional elasticity and resistance to impacts, stretching, and temperature extremes.
This is an essential feature for mountaineering, especially in glacier conditions, where materials are subjected to high stress and extreme cold.

An internal removable foam insert in soft neoprene prevents sweat from reaching your eyes during the most intense phases of your ascent. It also blocks light from filtering in and shields your eyes from wind, snow, dust, and debris ensuring uninterrupted focus on your climb.

The temples feature a special Grip section that prevents the glasses from slipping down the nose, even during strenuous activity, vibration, or sudden movements.
Soft, hypoallergenic rubber nose pads and temple tips enhance comfort and stability, providing a perfectly secure fit for long hours of wear.

Complete Set

Your photochromic prescription eyewear for mountaineering and mountain sports comes equipped with:

• Removable sweat-absorbing neoprene foam insert
• Removable optical clip for prescription lenses
• Elastic strap for secure fit
• Hard protective case for safe transport

No compromises, no limits only maximum performance, wherever your adventure takes you.

Optical Clip Specifications

• Lens height: 29 mm
• Lens width: 48 mm
• Base curve: 6

Compatible with prescription lenses up to -6.00/+5.00 (sphere) and ±2.00 (cylinder), and also suitable for bifocal lenses, to be fitted by your trusted optician.

Frame Measurements

• Width: 140 mm
• Height: 42 mm
• Temple length: 130 mm
• Base curve: 8