Gingham

Gingham was a form of cotton with stripe or cheque symbols.

The Sixth Doctor wore a single-breasted waistcoat of red and white gingham. (TV: The Mysterious Planet - Time and the Rani) His successor wore it before switching for a beige jumper with cherry question marks and turquoise zigzags. (TV: Time and the Rani)

Ian Chesterton wore a sapphire and white gingham shirt during a meeting of companions. (TV: The Power of the Doctor)