Vintage Geometric Disco ShirtVintage K Mart brand button down shirt from the 1970s, a style often referred to as a "disco shirt" due to its distinctive pattern and material. Era: 1970s Brand: K Mart Material: Polyester, known for its permanent press and stretchy qualities common to the era. Style: Features a long, pointed (dagger) collar, full button front, and a chest pocket. Pattern: A multi color geometric or "pointillist" pattern in shades of red, blue, black, and white dots.