Collection: Prescription Sports Glasses with Category 4 Smoke Lenses


Anyone who lives in the mountains and experiences all its characteristics knows very well how important it is to use the right equipment to be prepared throughout the entire excursion.

It is essential to protect your eyes as best as possible, given the greater solar intensity and stronger UV rays found in the mountains. For those who use prescription lenses daily, DEMON has created prescription sports glasses with category 4 lenses for mountaineering, ski mountaineering, and hiking.

The glasses are designed with every need of the trekker and mountaineer in mind: an ultra-light frame resistant to high and low temperatures, a removable sweat sponge, an adjustable and removable elastic cord, and category 4 lenses ideal for mountains and high altitudes.

Climbers wear glasses prescription sport with category 4 lenses

The prescription sports glasses with category 4 lenses can be used for normal hiking and trekking as well as for the practice of mountaineering and ski mountaineering. Category 4 lenses, which are darker than common category 3 smoke lenses, are also particularly suitable for those who are sensitive to intense light.

The unique feature of these glasses lies in a special attachment in the frame, where the optical clip can be applied to insert corrective lenses.

This special technology allows those who require prescription lenses to use technical lenses for mountains and mountaineering alongside their prescription lenses. Graduating a curved lens based on 8 (typical of sports glasses), especially when choosing smoke category 4 as the type of lens, can be very expensive. In contrast, solutions with optical clips are economical and at the same time high-performance.

Technical characteristics of prescription sports glasses with category 4 lenses:

Category 4 lenses: Category 4 lenses are technical lenses used for mountains and mountaineering. Their internal color is smoke, and they are designed to maintain perfect relaxation of the eyes even in very strong light conditions and with prolonged use. Prescription sports glasses with category 4 lenses can also be used for trekking excursions at lower altitudes, skiing, and any sport for individuals who are particularly sensitive to strong solar intensity. The category 4 lens can also be used beyond mountain contexts; it is recommended for all sports involving prolonged exposure to very strong sunlight, including sailing and navigation, paragliding, and flying.

Category 4 lenses for prescription glasses

    • Shatterproof Lenses: A fundamental feature of prescription sports glasses with category 4 lenses is their unbreakable nature. DEMON lenses are made of solid, anti-breakage polycarbonate of top quality. Besides being lighter than lenses made with conventional materials, they are more resistant to accidental impacts, making them safer.

      In the event of a very strong impact, the lens distributes the shock across its entire surface, creating a spiderweb effect that renders it ineffective; it does not generate any fragments that could harm the eye.

  • Optical Clip: It is the technology that enables the combination of prescription sports glasses with category 4 lenses, merging mountain eyewear with the realm of prescription glasses.

    The eyeglass clips are inserted into the close-fitting frame through specially allocated slots, which can be customized according to preference. This versatility allows for the use of prescription sports glasses with or without the vision clip, particularly beneficial if you prefer to wear contact lenses during your favorite sporting activities. Additionally, the clip can be utilized with or without the sweat sponge installed.
    The optical clip is crafted from the same material as the frame, ensuring elasticity and resilience even in extreme temperatures.

Optical clip for prescription sports glasses with category 4 lenses
    • Ultralight and Elastic Frame: All prescription sports glasses with category 4 lenses are made of TR90, a special composition of Nylon and Carbon Fiber that renders the glasses 20% lighter than those made with conventional materials. These glasses are more resistant to accidental impacts and better withstand high and low temperatures without breakage or deformation. TR90 is a hypoallergenic plastic with "memory," which means that when we wear the glasses, it behaves like an elastic band, gently contouring to the head and then returning to its original shape when we remove the glasses.

  • Accessories: 

    OUTDOOR with category 4 lenses is equipped with two particular accessories that are well-known to those who practice mountaineering and which distinguish technical glasses from regular mountain eyewear.

    • Removable Sweat Sponge: The sweat sponge is a crucial element; aside from preventing sweat from reaching the eyes, it shields the athlete from wind by forming a lateral barrier. Moreover, it prevents light from filtering in laterally from the mount.

    • Adjustable Elastic Cord: This accessory is often deemed as important as the sweat sponge. It enhances the stability of the glasses on the face and serves as a support to prevent the glasses from being lost when not in use. The elastic cord can also be customized according to preference.

Elastic band for prescription category 4 lenses

Using prescription glasses with category 4 lenses for your excursions is the ideal solution for those seeking technical eyewear to navigate the mountains while also looking for a cost-effective option.

Prescription sports glasses with category 4 lenses for high mountain