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  • photochromic polarized sunglasses for mountaineering and hiking


    Photochromic Polarized Cat.2-4 Lenses


    Frame Color: Matt Grey Light Blue
    Lenses: Photochromic Polarized 2-4
    Other: Removable Side Shields
    Included: Removable elastic band, Hard Case
    Sport: Mountaineering, Hiking
    Size: Frame Width: 148mm; Height: 44mm – Temple Lenght: 122mm; Lens Base: 8


    Photochromic Cat.2-4 Lenses


    Frame Color: Matt Black Green – Matt Black Grey
    Lenses: Photochromic 2-4
    Other: Removable Ergonomic Sponge
    Included: Removable elastic band, Hard Case
    Sport: Mountaineering, Hiking
    Size: Frame Width: 140mm; Height: 42mm – Temple Lenght: 118mm; Lens Base: 8


    Photochromic 2-4 Lenses


    Frame Color: Matt Black Grey – Matt Grey Yellow – Matt White Blue – Matt Grey Blue
    Lenses: Photochromic 2-4
    Other: Adjustable Nosepad
    Included: Removable Ergonomic Sponge, Removable elastic band, Hard Case
    Sport: Mountaineering, Hiking
    Size: Frame Width: 143mm; Height: 44mm – Temple Lenght: 118mm; Lens Base: 8


    Photochromic 2-4 Lenses


    Frame Color: Matt Grey Orange – White Red – Black Red – Matt Black Green
    Lenses: Photochromic 2-4
    Other: Adjustable Nosepad, Removable Side Shields
    Included: Removable elastic band, Hard Case
    Sport: Mountaineering, Hiking
    Size: Frame Width: 148mm; Height: 44mm – Temple Lenght: 115mm; Lens Base: 8


    Category 4 Lenses


    Frame Color: Matt Black Orange – Grey Red – White Red – Matt Black Green
    Lenses: Smoke Category 4
    Other: Removable Ergonomic Sponge
    Included: Removable elastic band, Hard Case
    Sport: Mountaineering
    Size: Frame Width: 137mm; Height: 42mm – Temple Lenght: 124mm; Lens Base: 8


Are you looking on the internet for information on which Mountain glasses for Mountaineering to choose? Have shapes, colors and all sorts of technology made your decision even more difficult?

We at DEMON have decided to create a mini guide to help you make some clarity on the type of mountaineering glasses that are right for you.

For maximum performance in the practice of mountaineering and ski mountaineering it is essential to choose the frame based on the following criteria:

• WRAPPING: The frame for mountaineering glasses differs first and foremost for its envelopment, which in addition to the role of comfort for the most difficult passages, serve to protect the eyes as well as the air, from possible external projections, such as: dust, leaves, branches and insects.

• LIGHT AND ELASTIC: Fundamental role, given the prolonged use of mountaineering glasses are lightness and elasticity. The glasses that you don’t notice are wearing good glasses. All DEMON frames are created in TR90, a special composition of Nylon and carbon fiber that makes the mountaineering glasses 20% lighter than conventional materials, significantly increases elasticity and makes the glasses nondeformable at high and low temperatures. The elasticity is important for the fit, in fact the glasses have the task of wrapping the face, without tightening and becoming annoying.

• DIMENSION OF THE AUCTIONS: In addition to the aesthetic factor, the size of the rods serves as additional protection. It is a surplus to the wrap factor. Particularly in alpinism the use of wider rods is particularly preferred for greater protection from leaves and branches in very dense woodlands, or particular passages where one comes into contact with obstacles such as ice or rocks.

• PARASUDOR SPONGE: Particularly appreciated by those who practice mountain climbing, this particular accessory supplied with some technical mountain mountaineering glasses from the collection, not only has the role of preventing the annoying drops of sweat from reaching the eyes but prevents light from entering laterally. Especially at very high altitudes where UVs are more intense.

• ELASTIC CORD: Many mountain glasses in the collection are equipped with an adjustable and removable elastic cord package. This particular accessory can be very useful in case of complicated passages during the journey, or simply to have a better grip of the glasses and avoid the annoying micro slipping towards the tip of the nose. If you use mountain sunglasses for ski mountaineering, the elastic cord can be very useful for you when going downhill.


It is fundamental to start from the assumption that regardless of the discipline practiced, mountaineering or ski mountaineering, the lens of the cycling glasses must be:ANTI BREAKING and OPTICALLY PERFECT. Because your glasses, in addition to protecting your eyes from sunlight and UV rays, MUST provide maximum protection even in the event of accidental impacts. The anti-breaking factor ensures that the lens does not break in the case of very strong impacts, thus creating no splinters, which could hurt your eyes, but rather creates a “spider web effect” that simply invalidates the lens. Optically perfect, it consists in seeing a point exactly where it is, to have the perfect perception of depth.
There are different types of mountaineering lenses, below we will explain the main features, and for which discipline they are more similar:

• POLARIZED PHOTOCHROMIC LENSES: Polarized Photochromic lenses represent the top of the range proposed by Demon for Mountaineering and Ski Mountaineering. They can also be used for hiking because they adapt to every change of light on the course, adding the plus of the benefits of the polarizing filter.
– Sharper vision
– Increased contrast
– Better perception of natural colors
– Eliminates and diverges the transverse rays of light

• PHOTOCHROMATIC LENSES 2-4: Photochromic lenses are lenses that, when exposed to UV radiation or sunlight in general, start a reversible chemical reaction and darken. Once the light irradiation disappears, the lenses gradually return to the initial state of transparency. They can be used both for the practice of alpinism and for hiking, so it is important to specify that the lens darkens and reaches category 4 only when necessary. If your exit will be at lower elevations the lens will darken until Category 3 is reached. Instead if the altitudes start to be high or in glacier where the UVs are more intense, the lens will reach Category 4 of security, protecting at best your eyes, even for prolonged use with very intense light conditions.

• Category 4 LENSES: Recommended for mountaineering in the high mountains and in the glacier. They are very dark lenses, often used in glaciers. You get the most out of these lenses in areas of strong brightness and UV intensity. These lenses are generally equipped with anti-fog treatment, their peculiarity is that they are darker than the normal Category 3, and on very sunny days, especially on summer days, they allow you to keep your eyes always relaxed, even with very intense solar and UV conditions.


• What is the main advantage of choosing a 2-4 photochromic lens or a Category 4 lens? The Smoke Photochromic lens is mainly indicated for those who are fond of itineraries with large wooded areas with low light, looking for glasses with advanced performance, which can be used both for mountaineering and ski mountaineering, and for a normal Trekking exit. While the Category 4 lens is more targeted for the practice of pure alpinism, for very long uses with very intense light conditions.

• Do you particularly suffer from light? In the event that your choice is oriented towards a photochromic lens, definitely the Photochromic 2-4 lens. If instead you are oriented towards a dark lens, the Category 4 lens is for you.

• Do you travel routes with strong light? (quite high altitude, desert, ….) Our advice is the same for those who particularly suffer from light to avoid minor irritation to the eye for not having adequately protected themselves: we recommend the choice of a very dark lens, the Category 4 lens that’s what you’re looking for.

• Do you have the habit of hiking early in the morning or at the end of the day? In this case we suggest in case it is oriented for a photochromic lens we confirm that it can be a very interesting solution, because it will adapt with the increase or decrease of solar intensity.