Two-component glasses with maximum wearing comfort. The combination of hard and soft material components in the Ultrasonic merges high mechanical strength with optimal wearing comfort. These prescription glasses can be worn for extended periods without causing pressure issues. The flexible soft component adapts individually to every face, providing comprehensive side protection around the eyes, even when worn over prescription glasses. The Ultrasonic offers excellent ventilation and ensures a pleasant internal climate that does not cause irritation. This top-quality eyewear also features a sporty design, a panoramic field of vision, and quick and easy lens replacement. The welding safety glasses come with a practical, foldable lens that can be easily swapped out. Sports design welding safety glasses, also suitable as over-glasses. Lenses can be exchanged. Perfect color recognition thanks to sunglass filters. New filter technology combines UV and IR protection. Frame color: Black, Green. Clear PC lens, additional gray PC lens. Practical folding filter that is easy to replace. Filters are extremely scratch-resistant on both sides, minimizing burns from welding sparks. Anti-fog coating on the inside, extremely resistant to chemicals and scratches on the outside. Wide, panoramic field of vision. No pressure issues during prolonged wear due to the combination of hard and soft components.