Ribbed racerback tanks by Reebok. Size medium, but fits more like small, especially around chest. These are circa 2013 and maybe that was sizing back then. Please see photos for measurements. Set of 2. Aqua and plum. Both are slightly heathered. 100% polyester. Despite their age, they are in great shape. Did not wear much because I am not fan of the longer length (see measurement photo).