Sized quite badly. If you can, I'd suggest ordering two sizes up from your normal size -- for reference, I'm approximately an M here.

I ordered a (short-sleeve) L, which the size guide says is 97 bust, 77 waist, and 39 shoulders. What I got measured 93 bust, 73 waist and 38 shoulders...so essentially an M size. And yes, the label/tag assures me it's an L; I wasn't accidentally sent an M.

I ordered a size up for comfort and to account for the potential +/-2cm difference. And thankfully I did as the dress does somewhat fit, even if badly on my frame (a bit tight around the shoulders, and not much room around the chest...especially as the sleeve/armscye is cut quite low so there's very little movement possible) as the dress isn't as loose on me as it is on the model, which was what that extra size was supposed to achieve :/ So the dress ended up being quite body-hugging and so it looks terrible on me, as the waistline is closer to my underbust and so this looks more babydoll than skater (dress).

Which means that to get this dress to sit properly on me, I'm going to have to cut it apart and add more fabric/ribbon/lace to the seams to add more ease and looseness. Sigh. Lots of work to be done.

One good thing about the design is that there is an invisible zip on the right hand side of the waist seam to assist in getting the dress over your head though (most of the buttons/closures are fake).