Barton Perreira Duke Sunglasses pair an oversized square silhouette with premium Japanese acetate construction for durable, all-day wear. Polarized CR-39 lenses with an anti-reflective coating reduce glare and improve visual clarity outdoors. Key attributes: Brown | Che | Gsm | Acetate | Polarized CR-39 lenses | Anti-reflective coating | Durable acetate construction | Includes case & cleaning cloth | Oversized square frame | Polished acetate finish | Bold coverage with refined proportion | Dimensions & fit: Eye size 56mm | Bridge size 19mm | Temple length 148mm | Oversized fit | Composition & care: Zyl (acetate) | CR-39 (lens) | Wipe lenses with the included cleaning cloth and store in the supplied case when not in use. Avoid exposure to high heat.