Balenciaga Sunglasses BB0299S 001. An evolution of the Rectangular Mask in a narrower shape, with a revolutionary design and a street-style inspired look. This exceptional wraparound mask is made with a full lens structure, featuring the distinctive ergonomic nose detail that has become a hallmark of Balenciaga eyewear. The Balenciaga logo is laser-engraved, colorless, on the top left of the lens.