Thunder Fifty Low Matte Black / Photochromic Mirror Red

Thunder Fifty deliver a powerful visual experience with OPTAREX™ Photochromic lenses that automatically adapt to light conditions. Built to sharpen vision in bright environments, they feature full UV400 protection, Category 3 lenses, up to a  68% blue light filter, and REVO coating to enhance contrast, reduce glare and keep vision clear at speed.

Rated Category 0–2, they are ideal for high-sun outdoor workouts — from road cycling to trail running. Designed with a lightweight, impact-resistant TR90 frame, Thunder Fifty combine an aerodynamic wraparound shape with wide coverage for strong side protection and stability. Silicone nose pads and temple tips provide a secure, comfortable grip—even in sweat or rain.

• Photochromic Smoke polycarbonate lenses: clear vision with a sporty style
• 68% Blue light filter: extra eye protection in bright conditions
• Premium TR90: strong, flexible and ultra-light frame
• Wraparound aerodynamic design: wide coverage with side protection
• UV400 & Category 2: high-level sun protection

Vision Control System