Winter warm heat fiber socks made in Japan, for men and women, various colors

Used more yarn compared to normal socks to create a layer of air, for holding maximum body temperature.

Innovative technology, mixing two types of fibers for "warmness”, and “moisture absorption", generates warmth.

Special "Heat technology fibers" used over parts that feel more coldness, like "toes”, “instep”, “Achilles”, “ankle”, to give extra warmness.

 “Heat technology fibers” are fibers that generate heat by absorbing moisture (such as sweat).

Size: for men 25cm-27cm, for ladies 22cm-24cm