Oliver Peoples M-4 30Th Sunglasses combine a vintage-inspired aviator shape with demi-flat photochromic lenses for adaptive everyday protection and refined styling. Key attributes: Silver | Indigo | Metal and acetate | Photochromic lenses | 100% UVA/UVB protection | Adjustable nosepads | Three-barrel hinge | Prescription lens compatible | Includes case and cleaning cloth | Vintage-inspired aviator design | Demi-flat glass lenses | Hand-engraved feather filigree temple | Custom hand-inlaid logo at temple tip | Dimensions & fit: Size: 49-20 | Temple length: 145mm | One size only | Best for most faces | Face coverage: Standard | Composition & care: Metal | Acetate | Crystal lenses | Wipe lenses with the included cleaning cloth and store in the original case. Avoid abrasive cleaners and prolonged exposure to heat.