Normally wear size 7.5, would recommend ordering next size up, 8 was perfect. (garnethill.com)
For 1/2 sizes order next size down as boots run large to allow for warm socks in cold weather. (bmodish.com)
I ordered next size up to be safe but I think my correct size would have been fine as it now needs to be altered to be taken in at the waist and sleeves. (uk.millybridal.org)