Grab these womens' Ugg Sienna Rain Bootsfor $27.99! They are on sale right now at the Ugg Closet sale. A classic rain boot with high-gloss finish, the Sienna features waterproof construction and a sheepskin-lined insole to keep feet warm and dry. Add rainy-day functionality to any outfit, worn alone or paired with our rain boot socks, which are crafted to cuff over the top for customizable styling.