Guides

Plain answers on sunglasses sizes, shapes, lens colours, polarization and care.

• Guide Designer Sunglasses Model Codes and Colour Codes How to read a code like GG1314S 001 or FT1155 52F, why one model comes in several colour codes, and how the UPC lets you match a pair exactly.
• How-to How to Care for Sunglasses Rinse, then microfiber; use the case; let an optician adjust the fit; and know what counts as a defect.
• Guide Polarized or Not: When It Matters What a polarized lens does, who gains from it, the trade-offs, and two tests that tell you whether a lens is polarized.
• Guide Sunglasses Lens Colours Explained What grey, brown, green and the fashion tints each do to the view, plus mirror coatings, gradients and the category number on the box.
• Guide Which Sunglasses Shape Suits Your Face The twelve common frame shapes, what each one does on a face, and the one rule of thumb worth knowing.
• How-to How to Read Sunglasses Sizes The three numbers on the inside of the temple are lens width, bridge width and temple length, all in millimetres.