I bought this sports bra for my yoga classes and have amongst other worn it for a 3 hour intensive session - everything else might have hurt but not my boobs. It's very very comfortable, unlike some sports bras where you feel your boobs are squished tightly to avoid bounce. I wear it for gardening too, because you simply forget you are wearing it as nothing digs in. It is underwired but the wires are not a problem. However, if you are looking for a sports bra for high impact exercise this may not be the bra for you. It gives support but not sufficiently to avoid a bounce if you run or jump up and down. I was fitted in the shop and we agreed going up one size in the band was better. Cup size still the same. Also it looks good under your t-shirt. No mono boob!!