These are Birkenstock Londons. I purchased them from an authorized retailer and have worn them about once or twice a month for about two years. The soles show little wear, and they can still be worn for a long time. I usually wear shoes in the 26.5-27cm range, and these are a perfect fit. They have a soft suede appearance and the comfortable fit that is characteristic of Birkenstocks, making them suitable for various outfits. I am selling them to organize my shoe rack.