Composed of shiny black and tortoiseshell acetate, Barton Perreira's rounded square Thurston eyeglasses are embellished at the temples with the brand's signature crosshatched silvertone metal detail. Crafted in Japan, this understated pair features metal core wires, allowing for an adjustable fit. Handmade. Logo insignia at temple tip. Rounded square shape. Clear nose guards. Core wire visible at temples. Logo-embossed clear demo lenses. Replacement lenses suggested. 49mm eye size. 22mm bridge size. 148mm temple size. Available in Black/Tortoiseshell/Silvertone. Acetate, metal. Made in Japan. Includes hard protective case and microfiber pouch.