Look for 100% UV protection, a comfortable fit, and a practical lens that suits your daily lighting. Consider lens color and coatings to match typical conditions you encounter.

Key factors are UV protection, lens type (polarized or non-polarized), frame size and bridge fit, and overall durability. Check for a good warranty or return policy if available.

Yes—polarized lenses help reduce glare for driving and water sports, while lightweight, secure frames suit running or cycling. Match lens and frame features to your typical activity and light conditions.

Look for multiple frame sizes and adjustable nose pads or temple tips. If between sizes, a smaller frame can feel lighter, while a larger frame offers more coverage.