A fabric, usually wool, with distinctive broken checks that resemble pinwheels or, as the name implies, the jagged back teeth of a hound. Once a popular fabric for hunting clothes, houndstooth is now a menswear staple used in suits and coats. Also known as a four-and-four check.
Houndstooth, sometimes referred to as dog-tooth, is a duotone textile pattern, characterized by broken checks or abstract four-pointed shapes. The pattern made a frequent appearance on fabrics designed in the 1930s through 1970s.