I liked this rash guard, it's cute. But I should have ordered a large and I have never won a large anything in my life. I wear a size 4 and have a small frame and tiny arms, and ordered a medium. The arms were so tight I couldn't move them. I am the person who can wear XS in many things, even at 5'7". Usually, I wear a small because I don't like things super tight. But this goes beyond tight, it's suffocating. Sad to return it. Order 2 sizes up!