With its slim frame and timeless design, Karter is a stylish standout. The classic aviator compliments every face shape, and is perfect for every occasion. Designer stainless steel frames featuring 3-barrel hinges and custom adjustable nose pads. The following features are included in all of our prescription lenses. 1.60 Lens Material super-thin and are an excellent choice for people with prescriptions up to +/-3.00 sphere (SPH) and up to +/-2.00 cylinder (CYL) (Total power is considered here) Anti-Scratch coatings help to defend your lenses against scratches and abrasions from everyday wear and tear. Anti-reflective or AR coatings help to reduce annoying glare and halos around lights as well as reflections caused by lights and computers. Water repellent hydrophobic coatings help to keep your lenses clean by repelling water droplets and dirt from causing smudges on your lenses. UV Protective coatings to deflect harmful UV rays from the sun to help prevent eye damage. See Prescription FAQ page for more details Frame 58 mm Width; 17 mm Bridge; 140 mm Temple Length We offer a 14 Day return policy with a 1 year warranty in case of any damages or scratches. Our warranty does not cover damage caused by accidents, negligence, or improper care. If the glasses are made incorrectly by our lab, we will remake them for no charge. If you are unhappy with the style of your glasses, we will gladly give you store credit upon return of your prescription glasses. For every pair of glasses sold, DIFF will help to provide the gift of sight to someone in need. Prescription lenses are created by our lab within 2 business days of receiving your order. You can expect to receive your new glasses within 10 - 14 days of placing your order.