Pretty sure Airblaster invented these. Actually true. Maybe. The first outerwear pants that Airblaster ever developed in around 2004 had elastic bottoms. We brought samples to the trade show. People said, "Ha-ha. ... Seriously, though. ... They're going to have normal bottoms, right?" And we were like, "Duh. Yes. Like, that elastic is just a joke, obviously." and we changed them. But it wasn't a joke. We were crying. But now we laugh. Teehee.