I ordered these on sale at another site. I always have trouble with boots fitting my calf size. My legs are not ginormous but it's a constant problem for me with boots. These fit great and I can even tuck pants into them. Unheard of for me! It's listed as 17" diameter on the other site and must be close as my calves are about 15.5". The shaft is nicely lined and the sole is thick enough so that I'm insulated from the ground. Brown color looks really good, IMO. I wear a size 8.5 shoe normally and bought them in that size. There is room for fairly thick socks and I probably could have worn an 8 just fine.