Ray-Ban RX 5448 Optical Frame combines a geometric acetate silhouette with photochromic technology for adaptable tinting. The frame balances bold, angular lines with everyday prescription readiness. Key attributes: Photocromic frame from Havana to Havana | Acetate | Photochromic lenses (change tint in sunlight) | Prescription ready | Geometric rectangular frame | Angular edges | Wide temples | Ray-Ban logo on temples | Dimensions & fit: Lens width: 55 mm | Bridge: 19 mm | Temple length: 145 mm | High bridge fit | Composition & care: Acetate | Clean lenses with a microfiber cloth. Rinse frame with lukewarm water and mild soap; dry with a soft cloth. Store in protective case.