UGG Australia was established 30 years ago by an enterprising Australian surfer and a bag of sheepskin boots! The natural insulation properties of plush Grade-A UGG sheepskin give thermostatic properties to the boots: the thick fleecy fibers on the inners allow air to circulate and keep the feet at body temperature, so UGG boots can be worn without socks or tights (even in relatively cold weather). Light and flexible soles provide excellent traction. UGG is an American company and calls their label UGG® Australia. Since 2005, the UGG brand has exploded onto the world market and gained in popularity. Take care to get the genuine UGG Australia boots and beware of imitations! New UGG models are appearing all the time and can be in short supply.