Houndstooth

Houndstooth is a pattern of alternating light and dark checks used on fabric. It is also known as hounds tooth check, hound's tooth, dogstooth, dogtooth or dog's tooth. The duotone pattern is characterized by a tessellation of light and dark solid checks alternating with light-and-dark diagonally-striped checks—similar in pattern to gingham plaid but with diagonally-striped squares in place of gin... (Wikipedia)