Add a pop of cute to your outfit with the Lulus Colleen Cognac Vachetta Leather Flat Sandals! Sleek vachetta leather forms these cute sandals with a T-strap upper and matching, adjustable ankle strap with gold buckle. 0. 25" rubber heel. Lightly cushioned insole. Rubber sole has nonskid markings. Genuine leather upper. Balance man made materials. Imported. Lulus | Colleen Cognac Vachetta Leather Flat Sandal Heels | Size 11.