These gorgeous hats are available in four sizes, ranging from about 6 months to adult!  If you are not sure of the size you should get, please measure your child's head in centimetres. These hats are a bit stretchy. Fleece lining around the edge of the hat for comfort - the hat is not fully lined. Merle's hats are made in Germany.  The hats are imagined and designed in beautiful Leipzig and the fabric gets manufactured with in a German factory with very high standards, they only produce GOTS certified fabric, and fair working conditions. The fabric is then shipped back to Merle's headquarters where the bonnets are hand sewn! Fabric: 95% organic cotton  and 5% elastane sweat jersey