Yikaisu Unisex Toddler Baby's Cute Chin Strap Sun Protection Bucket Hat Winter Hat Hat circumference about 19.6 inches with a chin strap, convenient,lightweight, Soft, comfortable, Stylish and Cute style. Material: Cotton,warm and feel confortable. Protects baby from the sun. Perfect for any outing. This hat is very cute with two ears and give it a charming look, fits boy and girl.