Polyester cotton Color: blue-green Size: Medium: 18.1 "-19.6" (45-50cm) fits 6 months 3 years Drawstring closure Quality Material: The kids summer hat is made of premium polyester cotton, quick-drying fabric, breathable and comfortable mesh lining which is soft, lightweight and skin friendly to wear. Sun Protection: Wide brim beach cap can keep kids' face, eyes and ears from sun and uv protection, which means that kids can enjoy outdoor activities fully. The hat is foldable to fit in a pocket, very convenient to carry. Adjustable Drawstring: The back of the foldable cap is adjustable, which allow your baby to adjust it into proper size according to their needs, easy to put on and take off without making kids feel too tight or loose. Fishing hat with adjustable chin strap, it has the windproof effect. Wide Applications: Sun protection hat is a ideal for toddler to play at the beach, go fishing, travelling, camping, boating and etc, suitable for outdoor activities. Kids bucket hats come in a variety of classic colors that are perfect for summer, spring and fall.