Now it is mostly for decoration, and many fashionable jeans no longer have that small pocket.
Jeans history:
1855- The earliest jeans had only one back pocket and no York.
1872—— It is the first time to reinforce the stressed parts of jeans with metal rivets.
1873- Jeans changed from gray to indigo. The back pocket is decorated with orange double arch stitches.
1886- changed the pattern of waist tag from dwarf to horse. 1890- plus a watch bag and a back York.
1893- whitcomb jobson invented the zipper.
1905- With the second back pocket, jeans are fixed in the form of five pockets.
1922- Add a belt loop at the belt.
1926-Lee Company produced the world's first zipper jeans.
1937- The rivet in the back pocket is hidden inside.
194 1 year-the rivet on the lower part of the front placket of jeans was cancelled. During World War II, the bow of the back waist and the rivet of the watch pocket were removed, and the double arch seam of the back pocket was replaced by a printed similar pattern.
1947- Arched suture reappearance.
1950- In order to keep up with the fashion trend, the trouser legs were cut into thinner styles.
1955- Start production of 50 1 zipper jeans.
1959- Pre-shrunk jeans developed.
1966- Fix a short strip trace instead of a rivet at the corner of the back pocket.
1983- due to the improvement of loom technology, the width of the door is widened and the red hem disappears.