shirtsleeves

Noun

 * 1) Street clothes, without a jacket or special protection.
 * Even though there were dangerous chemicals about, they worked in their shirtsleeves rather than hazmat suits.
 * 1) Non-professional status
 * 1) Non-professional status
 * 1) Non-professional status
 * 1) Non-professional status
 * 1) Non-professional status
 * 1) Non-professional status