Runs quite small - a full size small. I'm a true size 5, but ordered a 5 1/2 because size 5 was out of stock. But the 5 1/2s are very snug - my toes hit right up against the front of the boot, with no wiggle room. I'm going to try them in a 6, because otherwise I like the boot - the leather is soft, the footbed is springy and padded, and the brown color is deep and rich. The shape of the toebox could be improved, though - it's just sort of rounded off and detracts from the stylishness of the boot. I also ordered the
Lassen Amelia in a size 5 and they fit perfectly. Also, the description of both
boots say the shaft height is 8 in, but the Amelia is noticeably higher than the Kansas. So I took it upon myself to measure the shafts of both
boots according to Zappos' definition (Shaft - The height of the shaft measured from the middle of the arch up the outsole of the boot to the top of the boot shaft in inches). The
Lassen Kansas has a shaft of 7 inches (not 8).