Consider face shape and fit (frame size and bridge), lens features (mirror coating, UV protection), and overall style. Check for comfortable nose pads and secure temples.

Top attributes include the lens color and mirror coating, UV protection (look for 100% UV or UV400), polarization if you need glare reduction, and the frame size/material to ensure a good, comfortable fit.

Use-case and preference: decide between daily wear or a special occasion look. Also consider durability (hinges and coating), comfort for extended wear, and whether you prefer gradient or solid lenses.

Polarized lenses help reduce glare from bright sun, roads, water, and snow, making them a good pick for driving or outdoor activities. If you want a lighter, fashion-focused option, non-polarized mirrors may be sufficient.