Hall keeps things effortless with a soft square shape and bold colorblocking that adds just the right amount of personality. The smooth lines give it a modern, easygoing feel, while the contrasting tones create a look that fits right in with everyday style. Fit & Measurements A soft square silhouette. Best for average face widths Optical Fit52-21-151 Frame Width134 mm (5.3 in) Temple Length151 mm (5.9 in) Eye Size52 mm (2.1 in) Nose Bridge21 mm (0.8 in) B Measurement42.6 mm (1.7 in) The Lens Peepers Blue Light Focus™ Lenses utilize proprietary baked-in technology that filters high-energy visible blue light¹ Unique Lens Clearness all the comfort, all the style, with barely-there tints² Dual Anti-Scratch Coating for long-lasting protection UV400 Protection blocks 99.9% of UVA/UVB rays Acrylic Aspheric Material Lens that's ultra-thin and lightweight The Frame & Extras The Frame Spring Hinges for a durable, comfortable fit Polycarbonate frame that’s super-strong and ultra-lightweight. The Extras Complimentary Case Rest Easy knowing our products go through rigorous production testing³ to ensure optimal efficacy