Size Guide - Frame size is usually defined by lens width, bridge width and temple length. These values are always displayed in that order, in millimeters. As a reference, you may want to check the size of your current eyewear, by looking at the inner side of the temple. Should you see a fourth number at the end, this refers to lens height.LENS COLOR: PRIZM BLACK POLARIZED. There are 2 Core values at ZETOI 1. Quality and Price matter for us. WE FIGHT EVERYDAY IN MARKET TO BRING GOOD DEALS TO OUR LOYAL CUSTOMERS. Sign up to our newsletter for special deals.