The object of the present invention is to provide a composition and a fiber of thermoplastic fluoro resin/TPEE(s) and/or PAE (improved in chemical-resistances, anti static property and shock-resistance). The thermoplastic composition and fiber comprise (A) thermoplastic fluoro resin(s) and (B) thermoplastic copolyester elastomer(s) and/or thermoplastic polyamide elastomer(s), the ratio of (A/B) being 1/99 to 99/1 in the claimed composition and 99/1 to 50/50.
