This really is an all-day bra. It fits true to size. I am a 32 DD, 122 lbs and 5'4". I have had the worst time ever finding bras that work for my size. I forget I have it on by the time I get home from work. It is equal parts support and comfort... I could wear this to a yoga class or even jogging and be fine, but you can also wear it with any blouse. Nothing is flopping around so I can move and be comfortable. It's like a jog bra or lounge bra but with some structure and has no painful wires. The band does run a bit tight. I read on here that other gals have worn a band extender with it and it worked fine. It has nice breathable mesh in the back, but there is a seam down the sides which I think is meant to push your boobs forward. I feel the seem should be closer to the cups to achieve that effect, but whatever. It provides good separation so you don't have a uniboob. It is not truly a seamless or t-shirt bra because it has detailing on the cups which shows ever so slightly through, but it is awfully close, and hides if you layer a camisole over it. The cups don't gap and offer more way coverage than a demi bra but still has a very deep plunge. Because the cups cover more of your boob than a demi does, it hides better under t-shirts, so I consider it a quasi- seamless bra.
Feedback for the design team: Please use smaller hardware for the hooks and closures, a truly seamless material on the cups, and move that weird side seam up closer to the edge of the cup, like where your boob connects to your chest wall. It's hanging out there oddly under my armpit, LOL. With those minor adjustments, y'all would have the most amazing bra ever!