The light green hat is made of a very soft and stretchy material, so it's comfortable to wear and I think you'll be able to use it for a long time! The Moimoln socks don't have a size listed, so I'm not sure of the exact size, but I think they can be worn up to about 14cm! Moimoln items are originally made small, so I think the ankle design is also slim. You could also use this hat and socks for a demon costume, so how about them for Setsubun (the bean-throwing festival)? (*^^*)