The purpose of this study is to examine consumers environmental concern environmentally responsible behavior relationship between environmental apparel product knowledge and environmentally responsible apparel purchasing behavior and demographical features which have an influence on those above NEP scale was used to measure environmental concern GERB scale to measure environmentally responsible behavior ERAB scale to measure environmentally responsible apparel purchasing behavior and EAPK scale to measure environmentally reponsible knowldge. 1. Enviromentally reponsible apparel purchasing behavior is done more by thirties of over forties than by twenties. 2. Single women are more interested in environmental concern than married women are while environmentally responsible behavior and environmentally responsible apparel purchasing behavior are practiced more by married women than by single women. 3. As well-educated people have more knowledge about environmental concern. On the contrary as poorly-educated people preactive more knowledge about environmental responsible apparel purchasing behavior. 4. The group higher interest in environmentally have more environmentally responsible knowledge than those having lower interest. 5. There is no significant difference in environmentally responsible apparel purchasing behavior according to environmental apparel product knowledge. 6. The group having higher interest in environmentally responsible behavior practice more environmentally responsible apparel purchasing behavior than those having lower interest.