These designer sunglasses cannot take prescription lenses.Made of Nylon.Hilco Precious One frames have a oval shape, which helps to balance rectangular facial features. Frame shape is the most noticeable feature of a pair of glasses, followed by frame color and frame size. Top brands always have a large collection of rectangle frame shape glasses, as well as oval frame shape glasses.Hilco Precious One frames feature a fashionable full frame design, which is the largest component of designer eyeglasses brands collections. A rim all the way around the lenses, provides for maximum stability and durability.This frame has a total width of 100mm. See all Hilco Hilco Sunglasses Hilco sunglasses are made by Hilco/Wilson, a leader in the optical industry. Hilco is known as the industry's stockpile for parts, accessories, tools, and more recently, sunglasses. Hilco sunglasses are value sunglasses, well made at a good price point. With Hilco sunglasses, you can be sure you made a good purchase. If you like Hilco sunglasses, here are some other top sunglasses brands that you may also enjoy: Adidas sunglasses, Bolle sunglasses, Costa del Mar sunglasses, Revo sunglasses and Serengeti sunglasses.