a thermal underwear, thermal underwear, characterised by the fact that a main body (1) comprisesas a power source and a power source connected with the wu00e4rmeerzeugungselement (2),with the power source electrically connected to a flexible cell (3) and (4) comprises a flexible steuerschaltungsplatine and electrically connected flexible cell (3) and the flexible steuerschaltungsplatine (4) in the body (1) are arranged.
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