Ray-Ban - From Ray-Ban's historical archive, these legendary shades return. With iconic geometry, the Square 1973, carries on I-Shape's legacy. Oversized square frames in acetate create stand-out designs. Available with gradient and classic lenses that match tone-on-tone with transparent, classical black and havana frames. Category 3. General purpose sunglasses. High protection against sunglare, good UV protection, not suitable for driving at twilight, at night or under dull light.