Socks Supplement Just Like a Kotatsu Leg Warmers Anyway, it's warm. Cold weather対策 対策 for Cold Feet By warming the acupressure point "San'in-ko" in the ankle with a special material, you'll feel warm from the inside out. You'll be enveloped in warmth just like a kotatsu. Colors: Black, M Gray (1 each) Size: FREE Composition: Acrylic, Wool, Others New, unused, but stored at home. The top of the package will be folded for shipping. Please understand. Free shipping nationwide Anonymous, simple shipping