Buying glasses online may be a new experience, but we're here to help you through the process! If you didn't know that glasses had sizes, you're not alone. Frame size is comprised of several elements, measured in millimeters. Each frame will have its measurements shown in the product details. e.g. [A:49 B:32.5 DBL:17 TL:135]. 

Check out the guide below and to find your recommended Rec Specs eye size, check out our Sizing Guide.