The bottom line is, no, animals are not harmed to make UGGs.

Why you should never buy UGGs?

Not only are wool and sheepskin products cruelly made, they're also bad for the environment. In New Zealand, methane emissions from enteric fermentation (burping and passing gas), coming mostly from sheep, make up more than 90 percent of the nation's greenhouse-gas emissions.

Do UGGs kill animals?

UGG boots are made of shearling—yep, that's skin with the fleece still attached, people! Every year, millions of sheep are castrated and parts of their tails are cut off—often without any painkillers—before they're finally slaughtered for their skin, which is what UGG boots are made of.