I'm not sure what's up with their website. I was looking at the New Zealand site and everything is for sale in US dollars. Given the near +10 conversion, I suspect it has to be correct. Really though, unless there's something weird about your body (in which case SS suits won't fit) you should probably take your "normal" size. I'm a 36S in everything, including every SS suit I've tried. Some are slimmer than others, but they all fit as intended.