To provide a bamboo charcoal felt-built-in band protecting the wearer's body from outside atmosphere in winter when worn, preventing decrease in temperature of the body parts, excellent in perspiration and stuffiness-preventive effect, causing no difficulty on daily activity, easily putting on or off, and being easy to carry.

The bamboo charcoal felt-built-in band has the following structure: a stretchable knitted woven fabric is formed into a cylindrical shape, junction parts each comprises Velcro (R) so as to easily put on or off. The bamboo charcoal felt-built-in band comprises a three-layer structure because bamboo charcoal felt (having high moisture absorption and thermal energy storage properties) is inserted inside. This structure results in improving adhesive properties and airtightness to each part of the body so as to obtain cold-proof effect.