Authentic Botticelli black and brown genuine leather riding boots! Bought in NYC for $625. Excellent condition, just got them shined! The calf circumference is about 14.5-15" definitely more for a slender calf. Beautiful boots but I am moving so need to get rid of a lot of things that sit in my closet still :( super narrow so not for the wide-foot either. Size 40 is equivalent to a 10 but these run a bit small- could fit a 9.5 or berry narrow 10!