【Measures to Prevent Coldness from Air Conditioning!】 This is an item that will be useful in the coming season. Made with wool/cotton/polyester material... ...knitted. Size M: Fits 23.0-24.0cm, stretchy Shaft Length: Approximately 13.0cm Ribbing: Approximately 3.5cm ☆Home Cleaning Hand wash/machine wash in a laundry net is possible. ☆It seems like it will protect you from the cold of the air conditioner... Thank you for viewing.