Ray-Ban adds modern details to a traditional aviator in these distinctive RB4321CH sunglasses for men. The full-rim frames are crafted in hypoallergenic propionate—a lightweight but sturdy nylon material that’s comfortable to wear. The slim temples widen at the textured tips for stability and grip behind the ears. The signature Ray-Ban logo on the temple and lens finishes these frames with a subtle designer touch. In addition to filtering UV rays and eliminating glare, the Ray-Ban Chromance lenses in these shades heighten contrast, color, and contours for improved optical clarity.