Bikini sizing help

[blibblibs]

I've just bought a really lovely tankini from figleaves, the maya aztec. And after reading so many threads on here about just wearing a bikini and not worrying I'm going to brave it and buy the bikini top aswell just incase I think fook it while I'm away.
Except I don't know which size to buy.
I got the tankini top in a 32f, I think a 32e would probably be better but it fits OK. But the bikini top, a slightly padded triangle top is sold in dress sizes. Website seems to indicate I should order a size 10 but its been a very long time since I've ever worn a 10!
Does anyone have it and can offer some advice because I don't think I'll have time to order and send back and I hate the hassle of that anyhow.

Little bump for the evening crowd

No experience with that specific brand but I'm a 30f and wouldn't get a normal sized bikini top unless it was a tie back one as whatever would fit my boobs would fall down my back! I've got a primark one in a 16! Tried 12 and 14 clasp back and they were too big on the back. Do they do a cup sized bikini top, perhaps in a different style than triangle?

They do have another style which is actual bra sizes but it looks a little skimpy for me. The triangle seemed to have a bit more coverage.