Lanvin Ladies Flats. SKU - FW-BAMB02-GLOS-P24-LANVIN BLUE. Color - Blue. Lanvin Patent Leather Ballerina Flats. The Ballerina Flat is made from patent leather and features a 1 cm (0.39 inches) flat heel, a tone-on-tone leather tab at the back embossed with the Lanvin logo, and a Lanvin label stitched on the leather insole, offering a slip-on style. Made in Italy. Please visit the brand website for sizing information.