We love fabrics which are made from natural fibers. That is why we use cotton, linen and wool in our bonnets. All bonnets are lined on the inside. We use Oeko Tex-standardized soft 100% cotton in the lining, which is ideal againts a small child's skin and even the most delicate hair. Fabric’s quality standards are important for us and we strive to use standardized fabrics. The wadding that we used in padded winter bonnets has also the Allergy and Asthma Association's Allergy logo.