- 100% cowhide leather - soft sole - elasticated ankle - encourage learning to walk With shades of blues and greens… This model of soft natural leather slippers gives us a little taste of Azure and iodine! The upper is in cowhide leather and the sole in suede (returned leather). Each pair of soft leather slippers comes in a natural, reusable burlap bag. Our baby slippers are quite large, so they can easily be slipped over a onesie or a large pair of wool socks in winter...