UGG boots are the rise in Australia during the First World War, and was originally used by the Australian pilot, wrapped in sheep's clothing into the two shoes to wear in the feet warm, then gradually became popular in Australia. Initially the name came in. called ugly boots (meaning ugly shoes). Later, Australians nickname it egg. That is, one round straight fur boots, until 1994 by an American registered trademark of egg. So, egg brand of the United States, and manufacturers from Australia into China gradually.

After the United States, ugg began in various countries to register the trademark, but the Egg trademark in Australia, when faced cyber squatting lost on the grounds that Egg Australia has always been its own brand, so ugg Australia could be the use of local shoe manufacturer. At present relatively well-known Australian native fur shoe brand is Yale's (Yellow Earth). The company later acquired by the Chinese, set up factories in mainland China, but also for the United States do so on behalf of the ugg processing.