Details: Fits & Measurements: Optical Fit: 53-21-149 Frame Width: 140.3 mm (5.5 in) Temple Length: 149 mm (5.9 in) Eye Size: 53 mm (2.1 in) Nose Bridge: 21 mm (0.8 in) B Measurement: 44.8 mm (1.8 in) The Lens Brown: No Correction Polarized and Corrective (Reading, Bifocal, Progressive) lenses feature a solid amber lens. Citrus: No Correction Polarized lenses feature an amber gradient lens and Corrective (Reading, Bifocal) lenses feature a solid amber lens. Tortoise: No Correction Polarized lenses feature a green gradient lens and Corrective (Reading, Bifocal) lenses feature a solid green lens. The No Correction Lenses are polarized to reduce glare while enhancing color, depth and clarity The reading lenses are 2-in-1. Your favorite readers and sunglasses paired together Crafted for Comfort with lightweight frames and spring hinges UV400 Protection blocks 99.9% of UVA/UVB rays Dual Anti-Scratch Coating for long-lasting protection The Frame & ExtrasThe Frame Spring Hinges for a durable, comfortable fit Polycarbonate frame that’s super-strong and ultra-lightweight. The Extras Complimentary Case