Published 24 February 2023 · Last updated 20 May 2026 · 4 min read
Quick answer: “UGG” is the generic Australian term for sheepskin boots. The name almost certainly comes from “ugly boot” (shortened to “ugg”) — slang used by WWI pilots who wore fleece-lined “fug boots” in unpressurised cabins, then revived by 1960s Australian surfers as post-surf footwear. In Australia and New Zealand the word is treated as a generic style; in the US, UK and EU it is a trademark owned by Deckers Outdoor Corporation.
The humble ugg boot has become a cultural icon in Australia, with a long and somewhat mysterious backstory.
Around the 1960’s, Ugg boots started gaining mainstream attention and worked their way into the hearts (and living rooms) of families across the country.
The warm, fleece-lined boots were made popular by the Aussie surfing community, who found solace in their ideal post-surf footwear and shared them with the world on their travels.
So where did Ugg boots come from, and why are they called ugg boots? Many believe the origin of the Ugg boot can be traced back to World War I and World War II. Temperatures inside unpressurised fighter plane cabins would often be well below freezing, and the pilots would resort to any means necessary to stay warm. Along with fleece lined jackets and hats, sheepskin footwear was the obvious choice for the pilots.
Hence the ‘flying ugly boot’, or ‘fug boot’ for short, became popular. Over the years, there have been numerous folks coming forward claiming to have invented the now famous Ugg boot, or at least coined the term. However, as is usually the case where commercial interest is involved, it is difficult to determine the legitimacy of these claims.
Based on the popularity of the iconic footwear, the term “Ugg” is trademarked by a US corporation outside of Australia and New Zealand. For Aussies and Kiwis however, the term ugg is so generic it’s considered a style of footwear. Australian made Ugg boots continue to be extremely popular in the colder months, and are a must-have for all ages.
Despite the origin of the name being a little harsh on the ugg’s aesthetic appeal, by the 1990’s, the unique look and superior warmth and comfort had caught on in mainstream culture and fashion.
Celebrities, media personalities and musicians far and wide adopted the commercially-produced Ugg boots, including David Beckham, Jennifer Lopez, Paris Hilton and even Oprah Winfrey.
There is no doubt the ugg boot has received its fair share of love and criticism in the world of high fashion, but if you have owned a pair of quality ugg boots or slippers, it’s pretty clear there is no comparison. Designed for both men and women, and available in a range of colours and styles, the ugg boot is an essential part of the Australian wardrobe.
You can browse through our entire range of ugg boots and find the perfect pair for yourself or a loved one. Treat yourself to the warmth and comfort only an Ugg can provide.
Image Source: Pixabay
Frequently asked questions
Where does the name “UGG” come from?
The most widely accepted origin is Australian slang “ugly boot”, shortened to “ugg”. The term was used for early sheepskin boots worn by WWI pilots (“fug boots” or flying ugly boots) and revived by 1960s Australian surfers as post-surf footwear.
Were UGG boots invented in Australia?
The modern UGG boot, made from twin-faced sheepskin, was popularised in Australia by surf and rural communities from the 1960s onwards. While similar fleece-lined footwear existed earlier (including WWI aviator boots), the Australian sheepskin boot is the direct ancestor of every UGG style sold today.
Is “UGG” a trademark in Australia?
No. In Australia and New Zealand, “ugg” is considered a generic style of sheepskin boot, not a brand. Many local manufacturers can legally make and sell “ugg boots”. Outside Australia and New Zealand, “UGG” is a registered trademark of Deckers Outdoor Corporation (USA).
Who popularised UGG boots globally?
Australian surfers introduced sheepskin boots to international markets through travel and surf competitions from the 1970s. Mainstream global fame followed in the 1990s and 2000s, helped by celebrity endorsements from Oprah Winfrey, Pamela Anderson, Paris Hilton and David Beckham.
Are UGG boots originally for men or women?
UGG boots started life as unisex work and surf footwear, often worn by men first. Women adopted them in the 1980s and 1990s and they have been worn by all genders ever since. Today both men’s and women’s UGG boots are sold in matching styles.