Enjoy a double order of style with square-shaped Ray-Ban RX5279 prescription eyeglasses for men. The frame consists of flexible and hypoallergenic acetate, which is tough enough to survive your fast-moving lifestyle. Flexible spring hinges reduce tension on the frames and provide easy-fitting comfort. The full-rim eyeglasses have square lenses, squared edges, and a smoothly angled browline to give definition to oval, round, and heart-shaped faces. The glossy frame and shark fin temples of these men's prescription eyeglasses will add polish to your business or casual look.