I bought these for my sister.  She was a Wonder Woman geek when she was a kid (got to love the underoos for girls). :)  So I bought these as a gift for her b-day...something for us to giggle over.  They fit well coming out of the package - but the t-shirt shrank a ton after the first wash.  The pants didn't though.  So she can still wear the pants, but my niece now wears the top.  I suppose I could have gotten an XL - but the pants would have been too big.  They were great though as a giggle and memory from a long time ago.