This is a knit hat with a dinosaur pattern. The lining is fleece. The size is indicated as 49-51cm. I bought this here, but it was a little small for my son, whose usual hat size is 49cm, and it kept falling off. (It seemed like the transition between the knit and fleece parts was a bit tight.) There are some threads coming out from the pom-pom, but I think it can still be used.