Made in Japan by JN Co., Ltd.
Material: 100% Natural material: 1st & 3rd Piece: 100% Silk, 2nd & 4th Piece: 100% Cotton.
Size: M: 8.7 - 9.6 inches (22.0 - 24.5 cm), L: 9.6 - 10.6 inches (24.5 - 27.0 cm), LL: 10.6 - 11.6 inches (27.0 - 29.5 cm); Unisex.
Sock Measurements: M: 6.3 inches (16 cm) from opening to heel, 8.3 inches (21 cm) from opening to toe; L: 7.9 inches (20 cm) from opening to heel, 9.8 inches (25 cm) from opening to toe; LL: 10.2 inches (26 cm) from opening to heel, 11.0 inches (28 cm) from opening to toe; There are cases of minor size discrepancies.
You can also layer 10 or more of these, thus creating a larger sock.Please keep this in mind as you make your size selection.