Protection Certified to EN 1938, ensuring high safety and compliance. Anti-fog and anti-scratch iridium lens with protective finish for durability and vision Material Semi-rigid frame construction balances flexibility and strength for durability. Triple-density hypoallergenic foam efficiently absorbs sweat, improving durability and cleanability. Soft TPR (thermoplastic rubber) finishing patch offers a high-quality and durable finish. Comfort Triple-density hypoallergenic foam for a soft, comfortable fit that reduces skin irritation. Two front vents improve airflow, reducing fogging and maximizing ventilation. 50mm wide adjustable headband with silicone center band for a secure, non-slip grip, even on the move. Precautions Avoid prolonged exposure to direct sunlight to maintain lens clarity and prevent discoloration. Clean the lens carefully with a soft cloth to prevent scratches; avoid using harsh chemicals that may damage the anti-fog and anti-scratch coatings. Regularly check and adjust the band for an optimal, secure fit.