Size Guide
Understanding Mylulusstore Sizing
Description
xThunder Fifty deliver a powerful visual experience with OPTAREX™ Mirror lenses and a bold mirrored finish designed for high-intensity sport. Built to sharpen vision in bright environments, they feature full UV400 protection, Category 3 lenses, a 91% blue light filter, and REVO coating to enhance contrast, reduce glare and keep vision clear at speed.
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.
- 91% 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
- Smoke polycarbonate lenses: optimal visibility with sporty aesthetics
- UV400 & Category 3: high-level sun protection
Vision Control System
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