These black and white women's slingbackflats, from the iconic "Twins" line of the Mallorcan clothing company Camper, are size 38 (comparable to women's size 7.5 - 8) and featured the mirrored look - same design and colors in the opposite configuration that will make everyone look twice! This style is no longer available, so they're one of a kind. The sling back is crafted from wide black elastic with discreet heel grips. Uppers are leather, outsoles are man-made with rubber bottomed, insoles a leather/cotton/poly (see below). I bought them in Paris a few years ago. In very good pre-worn condition with couple of light scuffs on the uppers (see photos) but very little wear. Smooth leather uppers Lining: 33% Leather, 25% Cotton, 24% Goatskin, 13% Calfskin, 5% Polyester.