Ray-Ban RB3749 Sunglasses combine a geometric metal frame with glass lenses for a modern, everyday sunwear option. The design balances distinctive shape with adjustable nosepads for comfortable all-day wear. Key attributes: Yellow | Gold | Metal | Glass (crystal) lenses | Available with polarized lenses | Adjustable nosepads | Multiple lens options (polarized, gradient, photochromic) | Irregular geometric frame | Thin metal temples | Full-rim construction | Dimensions & fit: Lens width: 55 mm, 58 mm | Bridge: 18 mm | Temple length: 140 mm, 145 mm | Lens height: 39 mm (size 55), 41 mm (size 58) | Composition & care: Metal | Glass | Wipe lenses with a microfiber cloth; store in the supplied case when not in use.