i play. Baby & Toddler Girls' Brim Sun Protection Hat Shell: 100% Polyester; Liner: 100% Polyester Imported Pull On closure Machine Wash All-day sun protection for head, neck, and eyes Extra-wide brim coverage with stay-put tie straps made from quick-dry material for active play Wicking liner for comforter. Lightweight and packable for easy on the go UPF 50 plus excellent sun protection Formaldehyde free and azo-free dyes