What is this close-up picture? (WotsThat: Denim fabric weave)

Question

What object is shown in this zoomed-in close-up photo?

SilverFang · Accepted Answer

Denim fabric weave. The iconic diagonal lines in denim (called the "twill weave") were originally an accident of practicality—weavers discovered that this slanted pattern made fabric stronger and more durable for workwear, which is why it became the standard for work pants and eventually blue jeans. Interestingly, if you look closely at your jeans, the twill always runs from lower-left to upper-right in the USA, but runs the opposite direction in Japan—a quirk that denim enthusiasts can actually use to spot where their jeans were made!

Answer: Denim fabric weave

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