This is a casquette hat. It's made of black synthetic fiber (polyester). The fabric is very thin, light, and durable, and the silhouette changes significantly depending on how you wear it. If you have long hair and put it in a bun, it will look like a regular casquette. If you have short hair or don't tie your hair up, you can reduce the volume on top and wear it like a Chinese-style beret. The size is free size for women. The back has elastic. Please understand that this is a used item. The inside will be disinfected with alcohol, folded thinly, and sent via Yu-Packet Post. We recommend that you shape it and air dry it after receiving it. #Women's #Women's #Casquette