Persol 649 Sunglasses pair the brand’s iconic 649 silhouette with photochromic lenses and Persol’s Meflecto flexible-temple system for all-day comfort and adaptive sun protection. Key attributes: Havana | Acetate | Photochromic lenses (clear to grey) | Blue light filter | Meflecto flexible temples | Crystal lens material | Keyhole bridge | Iconic arrow hinge | Pilot/aviator shape | Tortoise (Havana) pattern | Dimensions & fit: Regular fit | High bridge fit | Composition & care: Acetate frame | Crystal lenses | Clean lenses with a microfiber cloth. Store in the protective case when not in use. Avoid exposure to high heat and harsh chemicals.