I love this tee. It is one that will be my go to. Nothing adds a smile to your face and others like an adorable smiley face.
There are so many good details on the shirt. It first off has a mock neck that adds a little more to your basic tee neckline. It runs very over sized.
I would say with sizing
s/m is more S-L fit, and the m/L is on the XL-2X side.
if you are on the fence you could go down. Our cute model here is wearing the s/m and is 5'2 and normally wears smalls.