Betula is a Birkenstock product. It's a more affordable line. I will be listing under Birkenstock Brand. Still good quality, Suede material, good footbed and soles. The shoe says it is a Women's Size 6 and Men's 4. They will comfortably fit a size 7 with socks. If you are unsure of your Birkenstock size, please ASK FOR MEASUREMENTS! Boston style Clog