Look at UV protection, lens type (polarized if glare is a concern), and how the frame size and color complement your face and wardrobe.

Key details are UV protection (UV400 or higher), lens material and coating, frame material/weight, and the fit across the nose bridge and temples.

Polarized lenses reduce glare for driving or outdoor use; gradient or mirror finishes affect style, and neutral frame colors tend to be most versatile for daily wear.

For smaller faces, choose a smaller lens width and lighter weight; for a bold look, prefer models with pronounced branding or color accents; for everyday use, select classic colors and durable frames.