The hat is made to size and is shipped according to the month you order. All ?tiwiti baby? Their products are made of antiallergic and antibacterial fabrics and are 100% cotton and domestically produced. Washing Instructions Choose the best for your baby! Do not use intense or bleaching detergent - especially the first wash in the machine at 30°. Do the Washing and Drying Procedures in Reverse For Longer Life.