These designer prescription glasses are made to accommodate most prescription lenses.Made of plastic, otherwise known as cellulose acetate, or zyl, the frame can be easily adjusted for a perfect fit with your prescription lenses. Your frame purchase includes free standard shipping charges, and manufacturer packaging. You can add doctor verified prescription lenses, add custom polarized lenses, and many other lens options if you desire them. Like all Timberland products, the Timberland TB1646 provides the sophisticated and classic look that we all need. Timberland TB1646 frames have a Aviator shape, which very fashionable now and great for progressive lenses. 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.Timberland TB1646 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.Designed for adults, this model has a Regular type hinge for greater comfort. See all Timberland Timberland Glasses Timberland glasses are designed by Timberland, which has a worldwide reputation for durability and reliability. Timberland is a subsidiary of VF Corporation, which brings us brands such as The North Face, JanSport, and Dickies. The Timberland eyewear collection is geared toward big glasses frame styles mostly for men, and the shapes are mostly angular and rectangular. Frame styles can be found in metals and plastics, in fully rimmed and semi-rimless designs, just like all Timberland eyewear. All Timberland glasses and most Timberland sunglasses can be customized with prescription lenses, just like all of our glasses.