The Go Walk Flex Mule Sandals by Skechers are the perfect blend of style and comfort. These strappy sandals feature a machine washable, airy and elasticated textile upper. The soft textile lining and Ultra Go cushioning provide exceptional comfort and a lightweight feel. The slightly profiled synthetic outsole ensures durability and stability. Give your feet a break with these flat, versatile mules. Upper: Textile Sole: Synthetic. Please make sure that you try your footwear on before returning, as the box or label may state a US/Euro size which is different to the UK size.