✔ 100% Satisfaction Guarantee & Salt Water Safe. **Will NOT fit XL**
✔ DARK ICE BLUE MIRROR LENSES - 6% Light Transmission ( *NOT matte).
✔ FITS HOLBROOK SUNGLASSES SECURELY - All model numbers starting with OO9102 - 55mm size
✔ THICKER LENS QUALITY - 1.4mm lens thickness (40% thicker than other company's)
✔ UV PROTECTED, GREAT POLARIZATION, CLARITY & IMPACT RESISTANCE (*meets ANSI Z80.3 Standards).