Valenki Russian winter boot decorative liners inserts felt sheeps wool 27

Valenki are amazing wool felt boots. However, the sizing is really hard to determine. While it says 27 on sticker, I can fit my foot in there and I'm a women's size 10.5. So...see the measurements and determine if they wil fit you. If you know of how to determine proper size, please reach out to me. I'd love to hear from you.