Yves Saint Laurent YSL 6006/S Matte Dark Blue Rectangle Sunglasses. Up for auction is an authentic pair of pre-owned Yves Saint Laurent (YSL) sunglasses (Model: YSL 6006/S 4MO 53-16). Featuring a matte dark blue rectangular frame, light gray lenses, and gunmetal-tone hinge accents stamped with the classic interlocking YSL monogram logo. Brand: Yves Saint Laurent (YSL) Model: YSL 6006/S 4MO Sizing: 53-16-135 Frame Style: Slim Rectangle / Y2K Vintage Frame Color: Matte Dark Navy / Blue Lens Color: Tinted Gray / Silver Condition: Pre-owned. The photos in this listing show the exact item being offered for sale. Condition Report: Please review all photos carefully, or feel free to ask for additional photos to receive a full condition report prior to bidding.