Ray-Ban RB3688 004/K8 sunglasses feature a polished gunmetal metal frame with black temples and a distinctive softly squared, vintage-inspired silhouette. The design incorporates a classic double bridge and slim wire construction, giving the sunglasses a refined early-2000s street-style aesthetic. The model is fitted with dark-grey Polarized+ lenses, classified as Category 3P, designed to reduce glare while improving visual clarity and contrast in bright conditions. Adjustable nose pads provide a secure and comfortable fit. The model is available in 55-19 and 58-19 sizes, with a 145 mm temple length.