"Sozai to Iro Basic" is knitted with 100% silk on the inside, which touches the skin, and 100% cotton on the outside.
With a comfortable medium thickness, the inner layer is fully lined with dense silk pile, so the stretch yarn never comes into direct contact with the skin. What you feel is the gentle comfort of 100% silk.

Although it is a double-layer structure, the fabric is knitted as a single piece, preventing the layers from shifting. It effectively absorbs and releases moisture and impurities from the soles of the feet.

As the silk yarn is washed repeatedly, it gradually develops a dry, crisp texture similar to linen.
In warmer seasons, a single pair is comfortable on its own. In colder weather, layering with our toe socks "Ashi no Hadagi" creates an insulating air layer, keeping your feet warmer.Suitable for wear throughout the year.

The L size (26–28 cm) is also suitable for those with larger feet.
It is also recommended as a set gift together with our toe socks.

Previously, our mixed-colour styles were offered under the name "Sozai to Iro Melange."
From this season onward, all styles will be unified under "Sozai to Iro Basic."

〈2026 New Colours〉

These new colours combine calm, subdued tones with accents of contrasting textures and hues.

sulfur Pink
A soft pink-beige with a gentle sweetness, scattered with a yellow glow reminiscent of sulfur, creating a quietly striking pair.

Sierra Ash
A muted ash tone with a subtle warmth of earthy red, where coolness and warmth coexist.

Vintage Willow (M size only)
A subdued greyish green with a mossy, timeworn character, accented with coral tones that evoke the natural beauty of ageing.

Grege Beige
A neutral blend of beige and grey. A quiet, refined presence with colour gently reduced.

outer: 100% cotton
inner: 100% silk
under thread: polyester, polyurethane
M 23-25cm / L 26-28cm
¥3,050 / new colors ¥3,540 (excluding tax)

＊Only international orders are tax-free. Domestic orders include consumption tax.
＊For orders shipped to the United States, applicable customs duties are calculated and included in your shipping cost at checkout — no additional fees will be charged upon delivery.
＊For all other countries, import duties and taxes may apply upon delivery depending on your country’s regulations. These charges, where applicable, are the responsibility of the recipient. As international customs policies are subject to change, we recommend checking with your local customs office if you have questions.
＊ We make every effort to present colors as accurately as possible. However, the actual appearance may vary depending on your monitor and PC settings.
＊The product image will update to reflect your selected color.