Deny it all you want, but we know you secretly have one pair of UGGs stashed in the back of your closet. Maybe you just wear them around the house, or maybe you’re someone who has no shame and rocks them in public. Hey, ifcelebs like Blake Lively and Cameron Diaz do it, they can’t be soooo bad, right?

But, if you think one of the best-selling boots of all time (if not THE best) can do no wrong with their comfy sheepskin lining, you need to get some facts. Sure the 35 Classics for 35 Years anniversary collection, and the newcustomization tool give us even more UGG options, but we’re not sure you’re going to want them after you hear this. Do you know what you’re really wearing (and funding) when you put on those Classic Tall UGGS?

According to Yahoo News, the real and not widely known reputation of UGGs is the awful treatment of sheep to provide buyers with wool. It’s horrible and inhumane. Not to be too graphic, but to give you all the info: they actually remove the skin of the sheep WITH the wool. It sounds painful just typing it. So that means the wool on the shoe is still attached to the sheep’s skin, and therefore sheep are killed to make the shoes.