Collection: Prescription Sports Glasses with Category 4 Smoke Lenses

PRESCRIPTION SPORT GLASSES WITH CATEGORY 4 LENSES

For anyone who lives or spends time in the mountains, having the right equipment is essential to stay safe, comfortable, and prepared for every excursion. Protecting your eyes is particularly important in high-altitude environments, where sunlight is more intense and UV radiation is stronger.

Understanding the needs of those who wear prescription lenses daily, DEMON has developed prescription sports glasses equipped with Category 4 lenses, specifically designed for mountaineering, ski mountaineering, and hiking. These lenses offer the highest level of sun and UV protection, reducing glare from snow, glaciers, and rocky terrain while providing consistent clarity in extremely bright conditions.

The glasses are engineered with technical and practical features for mountain enthusiasts:

• Ultra-light and durable frame: Made to withstand extreme high and low temperatures without compromising comfort or safety.
• Removable sweat sponge: Helps prevent sweat or debris from reaching the eyes, keeping vision clear during intense activity.
• Adjustable elastic cord: Ensures a secure and customizable fit, which can be removed when not needed.
• High-protection Category 4 lenses: Ideal for high-altitude and snow-covered environments, providing maximum eye safety while maintaining sharp vision.

These prescription sports glasses combine advanced protection, comfort, and performance, making them an essential accessory for anyone exploring challenging mountain environments.

Prescription Sports Glasses with Category 4 Lenses – Enhanced Performance for Mountain Activities

Prescription sports glasses with Category 4 lenses are ideal for a wide range of outdoor activities, from normal hiking and trekking to more extreme pursuits like mountaineering and ski mountaineering. These lenses are significantly darker than standard category 3 smoke lenses, making them particularly suitable for individuals who are sensitive to intense sunlight or who spend extended periods at high altitudes where solar intensity and UV radiation are strong.

One of the most innovative aspects of these glasses is the optical clip attachment integrated into the frame. This feature allows wearers to insert their prescription lenses directly into the technical sports frame, combining the benefits of corrective vision with the protective advantages of high-performance Category 4 lenses.

Using an optical clip offers several key benefits:

• Cost-effective solution: Creating custom curved prescription lenses for sports frames can be very expensive. Optical clips provide a more economical alternative without compromising performance.
• High performance: The optical clip ensures that corrective lenses are securely fitted within the frame, maintaining clarity and precision while engaging in demanding mountain activities.
• Versatility: Individuals can switch between technical sports lenses and prescription inserts as needed, ensuring optimal protection and comfort under varying light conditions.

By combining maximum sun protection, comfort, and prescription lens compatibility, these Category 4 glasses represent an ideal choice for mountaineers, trekkers, and anyone seeking high-performance eyewear in challenging mountain environments.

Technical Characteristics of Prescription Sports Glasses with Category 4 Lenses:

Category 4 Lenses – Advanced Protection for Mountain and Outdoor Activities

Category 4 lenses are highly technical lenses specifically designed for environments with intense sunlight and strong UV exposure, such as high-altitude mountains and glaciers. Their dark smoke tint ensures optimal visual comfort by significantly reducing glare and eye strain, even during prolonged exposure to very bright conditions.

These lenses are particularly beneficial for mountaineers, ski mountaineers, and trekkers, as they protect the eyes from harmful UV rays, intense reflections from snow or rocky surfaces, and high-altitude sunlight, which can be much stronger than at lower elevations.

Even at lower altitudes, category 4 lenses remain useful for individuals who are highly sensitive to sunlight or who spend extended periods outdoors. They are also suitable for skiing, snowboarding, and other outdoor activities where intense light could cause discomfort or reduce visual clarity.

Prescription sports glasses equipped with category 4 lenses combine maximum eye protection, visual comfort, and corrective vision, making them a practical and essential choice for outdoor enthusiasts who require precision, safety, and relaxation during their adventures.

Versatile Use of Category 4 Lenses – Beyond Mountains

While category 4 lenses are primarily designed for mountaineering and high-altitude activities, their exceptional ability to reduce glare and protect against intense sunlight makes them ideal for a wide range of outdoor sports and activities.

For example, in sailing and navigation, these lenses help maintain clear vision on reflective water surfaces, reducing eye strain during long hours under the sun. In paragliding, flying, and other aerial sports, they enhance contrast, preserve natural colors, and provide eye comfort at high altitudes where UV exposure is significantly stronger.

Even for extended outdoor excursions in extremely sunny environments, category 4 lenses ensure your eyes remain relaxed, safe, and focused, allowing you to fully enjoy your activity without compromising visual clarity.

Shatterproof Lenses – Safety and Durability in Category 4 Prescription Sports Glasses

One of the most important features of prescription sports glasses with category 4 lenses is their shatterproof construction, designed to offer maximum safety during high-intensity outdoor activities. DEMON uses high-quality polycarbonate, a material known for its lightweight nature, impact resistance, and optical clarity, making it ideal for technical sports eyewear.

These lenses are engineered to withstand strong impacts, such as accidental drops, collisions with branches, rocks, or sporting equipment, without compromising the wearer’s safety. In the event of a significant impact, the lens distributes the force evenly across its surface, producing a spiderweb-like stress pattern that prevents the lens from shattering. This innovative design ensures that no sharp fragments are created, which could otherwise injure the eyes.

Beyond safety, polycarbonate lenses also offer excellent durability, resisting scratches and deformation under normal use, making them suitable for mountaineering, skiing, trekking, and other extreme outdoor activities.

Optical Clip – Combining Prescription Functionality with Category 4 Sports Lenses

The optical clip is a groundbreaking feature in prescription sports glasses with category 4 lenses, designed to seamlessly integrate corrective lenses into high-performance mountain eyewear. This innovation allows athletes, hikers, mountaineers, and skiers who wear prescription glasses to enjoy the full benefits of technical sports lenses while maintaining perfect vision tailored to their eyesight.

The clip fits into specially designed slots within the frame, enabling easy installation and removal. This versatility allows the glasses to be used with or without the optical clip, providing flexibility for those who sometimes prefer contact lenses or plan to switch between activities. Additionally, the optical clip works in tandem with the removable sweat sponge, allowing users to adjust the setup according to comfort and environmental conditions.

Manufactured from the same durable and elastic material as the frame, the clip maintains resilience even under extreme temperatures. It is lightweight and secure, ensuring that the prescription lens stays firmly in place during rigorous activities without compromising the frame’s fit or stability.

With the optical clip, DEMON’s category 4 prescription sports glasses offer a perfect balance of technical performance, comfort, and vision correction, making them an ideal choice for high-altitude excursions, ski mountaineering, hiking, and other outdoor adventures where precise vision and eye protection are essential.

Ultralight and Elastic Frame

Prescription sports glasses with category 4 lenses are built using TR90, a high-performance blend of nylon and carbon fiber. This advanced material makes the glasses 20% lighter than traditional frames, ensuring maximum comfort even during long, strenuous activities like mountaineering, trekking, or ski mountaineering. TR90 is highly impact-resistant, providing safety against accidental knocks or falls, and it maintains its shape under extreme temperatures, resisting both deformation and breakage. Additionally, this hypoallergenic material features a “memory” effect, meaning the glasses gently contour to the wearer’s head for a snug fit and return to their original shape once removed, combining comfort with durability.

Essential Accessories for Mountaineering

DEMON’s OUTDOOR model with category 4 lenses comes with two critical accessories that elevate technical mountain eyewear above standard glasses:

Removable Sweat Sponge: This multifunctional component prevents sweat from entering the eyes while protecting against wind and lateral light intrusion. It forms a soft barrier that enhances comfort and visibility in high-altitude or exposed environments.

Adjustable Elastic Cord: Complementing the sweat sponge, the elastic cord ensures the glasses remain stable on the face during vigorous activity. It also serves as a safety measure to prevent loss when the glasses are removed. Fully adjustable, the cord allows users to tailor the fit to their preferences, ensuring both comfort and security.

Together, the ultralight TR90 frame and these mountaineering-specific accessories make DEMON’s category 4 prescription sports glasses an ideal choice for athletes and adventurers seeking maximum performance, protection, and comfort in extreme outdoor conditions.

Using prescription sports glasses with category 4 lenses is the perfect solution for mountaineers, hikers, and outdoor enthusiasts who want technical eyewear that combines high performance, safety, and comfort. These glasses are specifically designed to handle the intense sunlight, glare, and UV radiation found at high altitudes, ensuring optimal visual comfort even during prolonged exposure.

The inclusion of category 4 lenses darker and more protective than standard lenses allows users to confidently tackle mountain excursions, ski mountaineering, or trekking while minimizing eye strain and maximizing clarity.

Additionally, these glasses are a cost-effective choice compared to fully customized curved prescription lenses. Thanks to the innovative optical clip system, users can easily integrate their corrective lenses into a technical frame without compromising performance or safety. This combination provides a practical, durable, and economical solution for anyone who needs prescription eyewear for demanding outdoor adventures.