UGG Women's Classic Tall Boots UGG Australia's Classic Tall boot is one of UGG's heritage styles.The Classic Tall boot features quality printed twin-face sheepskin for refreshing comfort.It's one of the tallest boots and looks great all the way up or cuffed down. All boots in UGG Classic Collection feature a soft foam insole covered with genuine sheepskin and have a molded EVA light and flexible outsole designed for amazing comfort with every step.