These designer prescription glasses are made to accommodate most prescription lenses.Made of metal, 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 Stetson products, the Stetson Stetson Zylo-Flex 721 provides the sophisticated and classic look that we all need. Stetson Stetson Zylo-Flex 721 frames have a Navigator 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.Stetson Stetson Zylo-Flex 721 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 140mm. See all Stetson Stetson Glasses Stetson glasses have been a leading men's eyewear brand since 1982, offering incredible comfort and long lasting durability. Glasses are available in a wide range of colors, shapes, sizes and materials. Most styles accommodate multi-focal lenses. In 1865, John B. Stetson fashioned the hat that would become the symbol of American Independence, individuality, integrity and strength. Today, everything that carries the Stetson brand, stays true to these American values: "Make things right and the best they can be." All Stetson glasses and Stetson sunglasses can be customized with prescription lenses, just like all of our glasses.