My son wanted this shirt. Every time he saw it he cracked up. Of all the versions I saw with this caption, I liked the font and look of this shirt. Since he's a little more than 6' tall, I needed to make sure this fit an ADULT. I wrote the seller but never got a response as to whether the shirts were for youth sizes or adult sizes. Well, I got my son a L and it turned out (thankfully) to be Adult-sized and true to size. The quality of the tshirt material is good -- not too thin but not that thick Hanes-quality t-shirt either. It is 100% cotton, so aside from the fact it's black one would still need to wash these t-shirts in cold water and line dry to avoid shrinking...or buy a size or two up and when they shrink an 1" or 2, it won't have to be handed down to a smaller sibling. It was a nice thing to see him wearing it and where (as I said) he is over 6' tall, the shirt hem was on his hip -- so it has a good length -- which we frequently struggle with length on shorts and shirts when clothing isn't specifically labeled "tall" in the size -- However, not an issue here- perfect length.The price was good and we got it fast -- this seller (Shirt O'Fun) has a good variety to choose from. I'm looking at another for my other son -- who I swear has made this comment at a hilariously inappropriate kitchen cooking and/or car repair moment -- and that shirt reads "Stand back! I'm going to try Science!" -- I'm sure he'll get a kick out of it.