Look for a comfortable fit, solid UV protection (UV400+), and a lens/color combination that suits your style. Check the frame width and temple length to ensure the glasses sit well on your face.

Key factors are UV protection, lens type (polarized vs non-polarized), frame material and weight, size/fit, and price. Polarized lenses reduce glare and are worth it for driving or outdoor activities.

Polarized lenses cut glare and improve visibility in bright conditions. If you need vision correction, look for frames that are RX‑ready or allow lens replacement with prescription lenses.

For smaller faces, choose XS or compact frame sizes. For driving, prioritize polarized lenses; for kids, opt for lighter, secure-fitting frames designed for younger wearers.