Size is 40. The official website states 25.5-26.0 cm. I usually wear leather shoes and sneakers in the 26-27 cm range. I wore them with the thin Trippen original sole, and they fit just right. If your feet are a bit smaller, you can adjust the fit by purchasing a regular to thick sole at a Trippen store. There is some deterioration on the heels. Please check the images. They can still be used as is, but repairing them will allow you to use them with more peace of mind for a longer time. I purchased these new at a trippen store in Kobe. These are used items, so please understand that they are sold as-is and are non-returnable. I am listing these while working, so there may be times when I cannot respond or ship immediately. Thank you for your understanding. Aurora Shoes Birkenstock Clogs Chef shoes No stains, tears, or odors. Color: Black