This Champion Infinity Sport Bra truly adjust to my bust and back shape as it gives me great comfort while wearing. I can wear it the whole day for any kind of activity but it can also be used to some sport activities like yoga, Pilates and low impact workouts as it gives Medium support.Fabric contents in Heather colors is 53% Nylon, 43% Polyester and 4% Spandex. The mixture between Polyester with Nylon and Spandex yarn gives this fabric a really good stretch fabric on which I can feel a true close-to-body fit without being too restrictive or discomfort while wearing it. I have a 36D bust size and the "L" size of this sports bra fits me quite well and comfortable.It also comes with removable cups for extra padded on the bust as it also gives extra cover on your bust area as some women need extra pad for many reasons, including to cover the nipples area. This fabric is not revealing at all as it is heavy enough but still mid weight fabric.This is the new fashion and design on Sports Bra from Champion and if you don't like much the Nylon+Spandex fabric you can also get similar product but made with Polyester+Spandex Fabric. Search on Amazon site as you can find other designs from the same manufacturer.I've bought two different colors on the same design and I have attached some pictures for anyone who like to review how each of them look like.If new colors get available at Amazon, then I will buy them too, as I am happy with this sports bra and it fits me like true size, at least for me it is excellent to have and wear.