Look for a size that fits your face well, with a comfortable nose bridge and temples. Choose a brown square frame in materials you prefer (acetate for lightweight comfort or metal for durability) and ensure the lenses provide adequate UV protection.

Key criteria are frame material and build quality, lens technology (UV protection and polarization), fit and size (bridge width and temple length), and lens tint that suits your usual light conditions.

Polarized lenses help with glare during driving or near water, gradient tints assist with reading outdoors, and choose features like spring hinges for comfort or prescription compatibility if needed.

Focus on a size that fits your face, then pick a lens type (polarized if you spend time outside) and a frame material you prefer. Consider the bridge and temple fit to ensure comfortable long wear.