The Ray-Ban RB3757 Kai 004/2V is a contemporary unisex sunglass that blends minimalist elegance with sustainable innovation. Part of the Kai Bio-Based collection, it features a lightweight polished gunmetal metal frame paired with Azure Blue polarized bio-based lenses, offering outstanding glare reduction, crisp vision, and vibrant color perception.

Its refined oval silhouette gives the sunglasses a vintage-inspired yet modern appearance, making them suitable for both casual and smart styling. The slim metal temples and adjustable nose pads provide a secure, comfortable fit for extended wear. Designed with Ray-Ban’s bio-based lens technology, the lenses incorporate renewable materials while maintaining premium optical performance and durability.