I'm 5'6" 165lbs size 10 and 38C. I ordered a large and it fits great however you cannot wear any kind of underwear with this or the lines show through. I've tried every kind of seamless underwear out there and now it just hangs in my closet. I stupidly ordered the purple and black at the same time and I've never been able to wear them. Maybe the black would be alright because it's not as noticable but unless it's dark out then no.