Thank you for viewing. I knitted these using Opal and Yuzawaya Free Sock Next sock yarn. They are machine washable. Not too thick, not too thin, these socks are warm for the coming season and can be worn with sneakers. - We accept bulk orders. We will discount 200 yen for each additional pair, so please let us know in the comments if you would like to purchase more. - After completion, the socks have been washed once. I knit them carefully, but please refrain from purchasing if you are looking for the perfection of a mass-produced product. - Material: Wool and nylon blend - Size: Approximately 22-24 cm