Size (measured flat) Head circumference: approximately 54cm Height: approximately 21cm Materials: Cotton, Rayon Please see the washing instructions in the photos. This is a crochet hat knitted with lavender-colored cotton yarn. The main body and the pattern on the brim are made with shiny lame yarn, making it fashionable. It has a breathable pattern and is made of cotton, so I think you can use it even in hot weather. As this is handmade, we are waiting for your purchase if you understand. I referred to the video of "Itsunomanika 62-sai" (62 years old before you know it).