One 1st Birthday Pink Tutu. One size fits most. Your little girl only turns one once, so enjoy dressing her up in satin bows and layers of tulle. This darling 1st Birthday Pink Tutu is the perfect birthday outfit and is pretty enough for professional portraits. It has an elastic waistband, which makes it perfect for almost any size, and it keeps your baby comfortable for pictures or a birthday party. It also makes a wonderful gift for fun pretend-play all year long!