Yves Saint Laurent Couture Eye Marker is an eyeliner designed to make application so simple that you'll want to wear it every day. Its foolproof design contains a precision tip to draw thin lines with ease, as well as a flat surface on the side for thick, bold lines. Intense black color glides on in a single stroke, staying put all day and night for dark eyes until dawn. Color(s): 11 black. Brand: YVES SAINT LAURENT. Style Name: Yves Saint Laurent Couture Eye Marker. Style Number: 5211267. Available in stores.