Handmade knit hat. Made with acrylic and wool yarn, so it's not too hot and is lightweight. *Size Width when laid flat (brim): about 25cm Please note that there may be slight variations due to amateur measurements. It stretches well. *Materials: Acrylic, wool *Other notes: When washing, it's less likely to lose its shape if you wash it carefully, such as placing it between towels before putting it in a laundry net.