KISCO Flat Shoes These flat shoes have a modern feel, with the heel and square-cut toe made of black suede. The opening is made of rubber, so the rippling on the sides is part of the design (see photos 2 and 3). This is not due to the shoes losing their shape. I believe they are in good condition. They are labeled as size 39, which I am listing as 24 cm, but because the opening is made of stretchy rubber (see photo 5), I personally feel they fit more like a 23.5-24 cm size. Please understand that these are pre-owned items stored at home before purchasing.