Australia is the country of origin of UGG, but an American company has registered the "UUG" trademark.

Deckers Outdoor Products Co., Ltd. has UGG registered trademarks on shoes, clothes, hats, and handbags in China, and in 2011, the registered trademark was recognized as a well-known trademark. The company has registered the UGG trademark in more than 100 countries around the world, preventing other brands containing the word "UGG" from entering the market in the country where Deckers is registered. But in Australia, relevant Australian manufacturers have united to form the UGG Snow Boot Association to declare a fight against Deckers. They said that Australia is the country of origin of UGG, and Australian manufacturers have been making this kind of boots for decades, including selling them to the United States. UGG should be turned into a generic name. The Australian court upheld UGG as a generic product. Name practices.

In the United States, the Netherlands and Turkey, the courts rejected the claim that "UGG" is a common name for goods and maintained the validity of "UGG" as a single brand trademark. The same judgment has been made in civil and criminal cases involving registered trademarks.

In fact, "UGG" should not be pronounced "Youjiji", but "Age" (with the emphasis first). Because, initially, snow boots were called ugly sheepskin boots in Australia, and later the English pronunciation was shortened to [?g] (meaning ugly boots).

This kind of sheepskin boots became popular among shearers in 1910. Shearers removed a small piece of sheepskin from the sheep, trimmed it and used it to wrap their feet. They call these shoes ugly boots.

During World War I, Australian pilots wrapped two pieces of sheepskin into shoes and wore them on their feet to keep out the cold. Later, they gradually became popular in Australia.

Back then, the Australian Air Force first discovered the wonderful functions of Ugly Boots. They were made of wool on the inside and extremely light and soft tanned sheepskin on the outside. Therefore, Ugly Boots were adopted by Australia. The Air Force specified the production of special military boots. For a time, they were called FUGG, which stands for Flying Ugly boots.

What makes snow boots truly known to the world is the brand UGG AUSTRALIA.

In 1979, another surfer, Brian Smith,

bought some Australian-made sheepskin boots and brought them to the United States and started selling them in New York.

Mainly used by surfers in California. Later, he established the UGG Holding company and registered the UGG trademark.

However, due to poor management, in 1995, Brian Smith sold his shares to Deckers (Dex) Outdoor Products Co., Ltd. for operation. The company made Hollywood Celebrities wear it and become popular in the United States, and have recently been recognized in many countries.

In the winter of 2009, snow boots ushered in their spring with the momentum of the UGG trademark of Dex Company. Sales surged and they became famous overnight.