This is a vintage Westport Ltd. blue mock neck short sleeve top. Women’s size medium. It’s 65% polyester and 35% cotton. Machine washable and either lay flat to dry or tumble dry low. It measures approximately 20.5” pit to pit, 24.75” in length from the top of the shoulder to the hem and the mock neck is approximately 2”. It’s in very good condition with no stains or tears. Any questions please feel free to ask.