Start with fit and coverage: choose a frame size that sits comfortably and a nose bridge that fits well. Ensure UV protection (UV400) and solid lens quality. The black oval shape is versatile, but check bridge width and temple length for a secure, all-day fit.

Key factors include frame size (width and bridge), lens type (polarized vs non-polarized), UV protection, lens tint, and frame material for durability.

Polarized lenses reduce glare during driving and outdoor activities; if you frequently encounter bright light, polarization is beneficial. If glare is rare, a non-polarized option with good UV protection can still work well.

For driving or bright days, prioritize polarized lenses with high UV protection; for travel, choose a lightweight, durable frame with a comfortable fit; for daily wear, a classic black oval with secure fit and versatile styling is a reliable choice.