I printed out their size checker thingy, and I double-checked that it had printed true to size. When I followed the instructions and checked my feet I came up as just under a size 5 on one foot and exactly size 5.5 on the other foot.
I can't remember when I last bought a pair of shoes that was under size 6.5. I have wide feet and a high instep so I sometimes buy a size 7. I'm wearing size 40 Ecco boots at the moment and although there is a generous amount of space in front of my big toe it's not huge by any means.
I've been dithering for a couple of months (during which time the price has dropped, hurrah!) about ordering some boots from Hotter. I can't bring myself to place an order for size 5.5 as I'm convinced I'll have to send them back. Should I go for a size 6?