Gunnar Optiks JOU-02301 Joule Full Rim Advanced Computer Glasses with European Modernistic Detailing and Amber Lens Tint, Tortoise Frame Finish Kill the glare with the only patented computer eyewear recommended by doctors to protect and enhance your vision through the use of their specially designed lenses featuring proprietary tints and coatings that block high-energy blue light, UV and glare Weighing in at only 30-grams, these lightweight glasses are properly balanced to reduce pressure points and combat eye strain, while the multi-layered acetates add style by catching light and reflecting a myriad of patterns in varying depths 140-millimeter temples and full rim frame are forged from acetates to ensure lightweight durability, increase optical stability and enhance visual detail throughout the day Keep your glasses in place with the 15-millimeter bridge which guarantees long wearing comfort, while the one-piece front construction eliminates all welds, screws and other potential points of failure Limited Warranty that covers against defects for (1) year after purchase; these medium fit Joule Advanced Computer glasses are perfect for anyone who truly appreciates design