I purchased two of these tank tops before a vacation to a hot/humid climate.  They were light weight which made them easy to wear under another light weight top. They also dry very quickly so I could wash them in the sink and have them dry in a fairly short period of time.  These will now be a part of my summer wardrobe.  I'd say the sizing was about right. They were more of a loose fitting tank as seen in the picture. You may want to size down if you want something more tight fitting.