I'm not sure how they measured it but I measured from the toe tip to heel. Maybe they didn't measure the toe tip because of the pointed heel?
I think the flats run smaller than the sandals because I know I couldn't go any smaller than sz 7 in the flats.
Thank you so much for doing that! I think I might give the bow flats a whirl! I keep scouring eBay for a good deal on them too. eBay and poshmark. haha so far no luck.