From the Good Mythical Morning episode "Will It BBQ?"
I got a Small and didn't bother to look at the sizing chart because I've ordered shirts from Mythical before that fit fine (one I got in like 2015, and the other was a Tour of Mythicality tee I got online in 2018). When I got this shirt, I tried it on and realized it's massive. It says Small on the tag, but it's huge. Then I looked at the sizing chart and realized it actually fits true to what it says it will. My biggest issue is that it's SO LONG. I'm 5'10" and it completely covers my butt. I held it up behind the other Mythical shirts I've bought, and the We're Still Good tee looks like it's 3 sizes bigger, but they're all size Small. Looking at the sizing charts for other shirts, this seems to be the case for everything, but I was completely unaware of it. So now I have a t-shirt that completely engulfs me that I can't return. (And I would return it if I could, even though I wouldn't get my shipping money refunded.)
This is a great shirt! I bought it for my son because of the Will It BBQ episode and it’s catch phrase. Not only is the design great, but the material is so comfy. If it wasn’t a limited edition, I would get one for myself!