I'm from Australia so I was a bit iffy on sizing and cost, but let me say the top is so flattering (I'm not big chested but the girls are girling) and the material is so nice and buttery. Very good quality. In terms of sizing I sized up as I was in between sizes which was recommended to do so in the sizing info (for reference I'm size 10 in AU, 5'3/161cm, bra size 10 B, bust measurement about 87cm). I'm really glad a sized up to M, as the top is super form fitting and really holds you in (so S would've felt a bit tight on me), and I'm still able to have good range of motion in my arms and feel comfortable. Would highly recommend. I bought this top to test sizing and quality, and now that I've tried it on I've already added a bunch more to my cart.