It’s well known that jerseys are usually expensive, so why are they so affordable on the CNFans Spreadsheet?
First of all, jerseys come in two types: player edition and fan edition. The fan edition is generally cheaper, and most of what's sold in the market are fan versions. Player editions are usually custom-made and not publicly available.
In addition, all the jerseys listed on the CNFans Spreadsheet are made in China. As the “world’s factory,” China has countless manufacturing plants, leading to fierce price competition. While there are many low-quality products out there, the CNFans Spreadsheet carefully filters and selects only the best-value options. That’s why you can find jerseys for around $10 without worrying about quality. Here’s a photo showing a small selection of the available styles:

You can explore even more styles by visiting the CNFans Spreadsheet and selecting the Jersey category.