New Round RB3637 Sunglasses by Ray-Ban. Color: Silver, Gold, Black, Size: 47-21-135, 50-21-140, 53-21-140. The originator of the iconic eyewear pieces, Ray-Ban is synonymous with cool, hip and freedom of expression. The glasses feature a distinctive frame with strong character and modern appearance. Utilizing premium-grade, bio-based materials and latest technologies, Ray-Ban creates extremely comfortable spectacles with a perfect fit. The Ray-Ban sunglasses are equipped with high-end polarized lenses that block glare for improved clarity and contrast, while also offering 100% UVA and UVB protection to shield your eyes from the sun's rays.