Black on Black Fort Knocks Rx

Inspired by the United States Bullion Depository in Fort Knox, Kentucky, these high quality, form-fitting sunglasses make for a comfortable and flexible fit. Best on larger head shapes, the Black on Black Fort Knocks Rx offer a timeless silhouette—perfect for your next pair of prescription sunglasses.

• Matte black frames
• Gunmetal hardware
• Spring hinges
• Single vision or progressive
• Lenses available in a variety of colors
• All sunglasses lenses are polarized
• Digital lens technology offers sharper image quality and enhanced contrast
• Correction available in -6 to +3*
• Astigmatism correction available to -4.00
• Pupillary distance available in 57-80mm**
• Scratch resistant coating
• Anti-reflective coating
• FDA compliant impact-resistant polycarbonate lenses
• UV400 protection
• Lightweight
• Unisex
• Hard shell case and microfiber pouch included
• Prescription eyewear is available for U.S. customers only

*Correction available may vary per prescription and frame style selection. Our technicians will verify your eligibility before your order goes to production and will contact you with any issues.
**Some PD restrictions may apply on specific frames. A large disparity between customer PD and frame PD will increase thickness of final product.