Satsuma Designs jersey infant hat (0 6 Months) is made in the USA of viscose (rayon fiber) from bamboo. Our lightweight, double ply hat is incredibly soft, yet durable for everyday wear. Our products are fashioned from viscose (rayon fiber) from bamboo, which is a material softer than the softest cotton making it a great material for use in children's accessories and apparel. All of Satsuma Designs products are an ultra soft and c ounce y, yet breathable solution for any baby in any climate. While standard care instructions apply, Satsuma Designs recommends cold and gentle machine washing and line drying.