Photochromic Lenses Cat.2to4





Frame material: TR90 Ultralight

Weight: 35 grams

Frame Color: Matt Gray Fluo Orange, Matt Black Gray

Lens Type: Photochromic lenses Cat. 2a4

Other: Adjustable nose piece, Removable side parts

Included: Hard Case, Microfiber Case

Sport: Mountaineering, Hiking, Ski Mountaineering

Fit: Man

Dimensions: Width: 145mm; Height: 50mm – Rod Length: 125mm; Lens Base: 8

Product Overview

Photochromic Mountaineering Glasses with side protections

Our photochromic mountaineering eyewear with side shields plays a key role in all of this and a perfect fit and the right technical features allow you to focus solely on performance. The PLANET model guarantees protection from UV rays and perfect vision thanks to the first quality anti-scratch polycarbonate lenses, decentralized and optically perfect. The super light and elastic material of the frame is in TR90, a special composition of nylon and carbon fiber, which makes the photochromic mountaineering glasses with side protectors 20% lighter than conventional materials and more robust to accidental impacts and tractions.

Photochromic mountaineering glasses planet model grey orange

Technical features:

The PLANET mountaineering model mounts 2-4 photochromic lenses. Photochromic lenses are lenses that, when exposed to UV radiation or sunlight in general, initiate a reversible chemical reaction and darken. Once the light irradiation disappears, the lenses gradually return to their initial state of transparency. The 2-4 photochromic lenses indicated for the practice of mountaineering and ski mountaineering differ from common photochromic lenses because they start from category 2 and reach protection category 4 at the moment of maximum exposure to UV-A and UV-B rays.

The top quality lenses of our Mountaineering Glasses will amaze you and make your every trip unforgettable, because living the mountains is our passion. The difference between a 2-4 photochromic lens versus a category 4 technical lens lies in the color change of the lens according to your path. The very dark category 4 lens in areas of strong shadow caused by a wall or a dense bush can sometimes be a limit.

The photochromic lens adapting according to the UV intensity remains clear in the shaded areas allowing the optimal vision of the path and any obstacles present, while in the areas of light with strong irradiation it darkens automatically reaching category 4. To allow your eyes the perfect vision even in the intense solar conditions typical of the high mountains, especially in glacier areas, offering you excellent comfort.

Photochromic glasses for mountaineering planet model black grey

Included is the adjustable Neoprene band, to allow our photochromic mountaineering glasses to adhere better in the most difficult passages, and to prevent those annoying little slips forward that drastically decrease in comfort.


The soft hypoallergenic rubber nose pads are adjustable and non-slip to offer an excellent fit and adapt to any face shape, also greatly reducing the risk of slipping.


The removable side parts allow you to change the look of your glasses, transforming it if your acticity is also just a normal walk in the mountains.

Where therefore it is not necessary a greater lateral protection from the light. Hard case supplied to better protect your glasses from scratches or any breakages.


DEMON mountaineering and ski mountaineering goggles are ideal for glacier excursions and in all high mountain activities in which you are exposed to strong sun exposure, but are also optimal for normal trekking at lower altitudes.

No compromises, no sacrifices, maximum performance, always and in any case.

The measurements of the photochromic mountaineering glasses are: Width: 145mm; Height: 50mm – Rod Length: 125mm; Lens Base: 8

The products  always shipped in their original packaging. For some models, the color or shape of the case may differ from that shown.


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Photochromic Lenses Cat.2to4

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