Some cold weather boot styles of Uggs are waterproof. Some styles are described as waterproof, while others have components that are waterproof, and some are considered water resistant.
To make certain the Uggs are protected from water, treat them with a waterproofing spray. Ugg offers suede and sheepskin protector and other options that are inexpensive, easy to use and provide added water protection to footwear. When choosing a waterproofing treatment, make certain it is safe and effective on nubuck, suede or the shoe's specific type of leather. Shoes and boots that already are waterproof can be treated with additional products with no adverse effects.