The UGG Butte Black winter waterproof boots are perfect for kids in US size 3. These lace-up boots feature a round toe, flat heel, and mid-calf shaft style, making them ideal for casual occasions and winter season activities like walking, school, and hiking. The slip-resistant, waterproof, and insulated features ensure comfort and protection. With a logo accent and sheepskin lining, these boots combine style and functionality, making them a must-have for both boys and girls. Made with leather upper material and leather insole, these UGG boots are durable and cozy for all-day wear.