I love these boots. I bought these fully expecting them to be too narrow and have to send them back, but they fit. I wear a size 6.5 and they fit me perfect. My right calf is 15.75" and they fit great and can tuck jeans in and zip up, only slightly snug.  They are looser on my left leg cuz my left calf is smaller by 1/4"!  So happy I spent the money on these boots.  The foot part of the boot is slightly long for my foot but if I had bought a 6 they would have been too narrow, and I have very regular feet, not wide, not narrow.  There is no arch support in these boots but I didn't expect any and can put in an insert if I need it.  Overall, love this purchase!