.Houndstooth.

A  duotone textile pattern, characterized by broken checks or abstract four-pointed shapes, often in black and white, although other colours are used.

Houndstooth checks originated in woven wool cloth of the Scottish Lowlands,^[1] but are now used in many other materials. The traditional houndstooth check is made with alternating bands of four dark and four light threads in both warp and filling or weft woven in a simple 2:2 twill, two over - two under the warp, advancing one thread each pass.^[2]

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