This is a product of the very popular [silk and wool double socks] in fall and winter, with cotton on the front side.
The softness of the rough, low-gauge socks is, of course, not too tight.
They are refreshing and not too warm compared to wool products.
The inside is silk, so of course they are less stuffy and easy to wash at home (just be careful with the dryer, as they can shrink).

The cotton yarn we use is more expensive to purchase than acrylic wool yarn (which is the main reason for the difference in selling price), but it is also more firm and less likely to lose its shape.

They come in two colors: simple gray and charcoal.
Size M (22~25cm).
For reference, the owner's actual foot size is 24.5cm, and her usual shoes are 25.5cm, but she can wear them.