Except for a few hours here and there over the weekend, I am in workout clothes 99% of the time. This top is one of my favorites because it is loose around my midsection, but tight enough to give my chest support. I also love the length since it covers my backside when pulled down. It is excellent for a low impact workout. I would suggest not wearing this top if you will be doing anything high impact such as running or jumping, the built-in bra does not offer enough support for those activities. I see a lot of expensive workout clothing out there, and this top fits right in with them, but for half the price! Since I am in workout clothes most of the time I need something comfortable and easy to nurse in, this fits the criteria perfectly! I ordered one size up because, at the time of purchase, I was nursing, and my breasts were larger than normal. Now that I am no longer breastfeeding, the bra portion does not fit quite as well, but it still works for me! I would suggest ordering in your standard size (base this sizing on your chest size) because it does have enough stretch to it!