Thank you for viewing! Hand-knitted sneaker socks. They have a tab to prevent them from slipping off. These socks are made of wool and are fluffy and warm. - Size: 23.5-24.5cm - Yarn: Opal FLAIR series, Color No.: 11484 - Material: 75% wool, 25% nylon - Design: Sneaker socks They can be washed in the washing machine by putting them in a net. Although I knit them carefully, please understand that as handmade items, there may be some irregularities in the stitches.