Herringbone Twill

Herringbone Twill, also known as Broken Twill Weave, is so called because of its distinctive alternating weave pattern, which is said to look like the bones of a fish. Usage of the herringbone pattern dates as far back as Roman times. Roads were paved using the HBT structure as it added additional strength and durability to the surface. Military use of HBT is very common, with fatigue uniforms issued during World War II and in times since have commonly been manufactured using it. In the US military, fatigues are commonly known as HBTs.