Instruct: Classify Amazon reviews into positive or negative sentiment
Query: runs small???

It seems like a decent bra although I'm not positive how much posture support it provides. However, after reading all of the reviews, I ordered a size larger than I would normally take and it was ENORMOUS on me - so much so that I can't vouch for the support, comfort, or anything else.... Still, shipped quickly and I was able to return without issue.