I can't measure my feet, because it's different every time I do it. I usually wear EU size 38, 90% of the 38 sized shoes fit me perfectly.
I bought a pair of L-size Baby shoes last year, and they are so small I was crying out loud when trying them on. I also tried on two different Bodyline shoes from friends, these high heels in 24,5 - they fit like a dream, and these low heels in 24,5 - they were 1 cm bigger than my feet.
So as you see, I tried on three pairs of shoes from the same size (24,5 - EU 39), and one of them was too big, another one (the most expensive) was way too small. I'm quite confused now because I thought at least Japanese sizes are accurate...
If someone owns IW shoes, I need your advice/opinion about sizing. Shall I go for the L size, or the LL instead?