Make a bold statement with these Derek Cardigan 7002 Brown Tortoiseshell eyeglasses. The classic Retro Wingtip style is pumped up and made bigger in rich brown tortoiseshell acetate. To help show off your geek pride, the division and multiplication symbols are featured on the sides with the equal sign on the arms. For added comfort, the arms are attached with spring hinges. This style is also perfect for sunglasses, just add a tint!