first purchase suggestions!

hi everyone! i have some alo socks and hair clip i received for free from a community pilates class

i'm going to the grand opening party at the new store in seoul this evening and really want to get my first set/clothing item! does anyone have suggestions for a first purchase? my chest is too large to fit into their bras, but i was thinking of maybe the crew neck sweatshirt and shorts~

appreciate any suggestions!! :)