Did you ever wonder why you never get cold when you’re wearing Under Armour? Or why some of your workout clothes seem like they never smell, even though you know YOU do? Well under all that stretchy fabric and pretty patterns is a whole mess of technology that the brands invented themselves.
And there are some pretty crazy technologies out there, which of course means that some weird patents exist too. If you invented something that was modeled after the coating of a military plane, you wouldn’t want anyone to steal it either. Our fave is Uniqlo’s HEATTECH, mainly because it sounds so scientific, but they found a way to put it in sweaters and tights that still look cute. To see some more interesting patents, click through the slideshow below.