Mud Pie Baby Girls' Owl Tunic and Tights Set Top: 100% Cotton; Tights: 95% Polyester, 3% Nylon, 2% Spandex Imported Machine Wash Make the birthday girl feel extra special on her big day in this personalized #1 owl birthday tunic and tights set. Add the finishing touches to this cute birthday outfit with any of our birthday girl hats or headbands.