Why the fifth small pocket in jeans
Jeans - trousers made of dense cotton fabric with riveted joints of seams on pockets. First made in 1853 by Liva Strauss as work clothes for farmers.
Initially, jeans were sewn from hemp canvas of English or American production, which became much cheaper due to the decline of the sailing fleet. It is thanks to this material that jeans have earned the fame of exceptionally durable clothing. Subsequently, hemp was replaced by cotton, and by the beginning of the “jeans revolution” in the world fashion (1960s), hemp fabric was no longer widely used in their production.
We find out what purpose the small “fifth” pocket on jeans served.
There was such a pocket on Levi's first 501 XX jeans in 1873. There are several versions of why it was invented. According to one of them, a pocket was used to store hours on a chain in it - then it was slightly larger than now, so the clock fit freely in it. By the way, in Levi's catalog, it still goes by the name of “watch pocket”.
Another theory says that it was created for the convenience of workers - they put nails in their pockets, and gold miners kept small nuggets in it.
There is a third version, according to which this part was invented for storing Zippo lighters. Since most cowboys used them, their pocket size was also adjusted to this standard.
It would seem, why also sew a small pocket on jeans, if there already are four there - a lighter or flash drive, in the end, they can also shelter. The advantages of the “fifth” pocket for us are better indicated by the Levi's advertising video - he helps the protagonist get into the beauty’s bedroom.