I am always in search of a comfortable work out top. This one fit the bill. Not only is it comfortable but flattering as well. It has a built in bra with removable cups, and a hidden zipper  pocket on the back hip area.  I don't know if I would use it or not but it's there .It is long enough and doesn't seem to ride up like some tops do.  It runs small and I don't like things skin tight. Although I wear a medium in most everyday tops, I usually wear a large in a workout top. Due to other reviewers comments I ordered the X-Large and it fits perfectly. I liked it so much that I ordered two more. I even found that I could slip on a long skirt with it and could wear it poolside or for a quick grocery stop. I am 5' 6 1/2" tall, wear a size 8-10 in most clothing and wear a 36C top. My upper body is on the broad side so look for more comfort there. Love the style of this workout top.