The word ugg is a generic term for boots made of sheepskin with fleece on the inside. Ugg boots look and feel comfortable and warm. They have been popular in Australia and New Zealand where there are abundant supplies of sheepskins.

Ugg boots are a fashion trend seen on female celebrities in many places including North America in recent years. The latest news involving ugg boots is NFL Quarterback Tom Brady's acknowledgment that he has been wearing ugg boots for a long time.