Awesome rubber boots that I bought thinking they would fit my size 9 foot. I have a narrow foot and usually fit in a size 9, but these run small. I'd say an 8 or 8 1/2 max. I will buy another pair in a size 10. They are so cute; bummed I could not wear them the day they arrived. I'm listing them as a size 8 even though they tag says size 9.