https://techcrunch.com/2023/11/07/returngo-5m-amazon-fulfillment-e-commerce/

Returns are a regular part of shopping. However, as more people shop online, retailers run into more instances of customers buying several clothing sizes of the same item with the intent to return what doesn’t fit. That has created quite the chaotic returns process.

As a result, retailers have not only lost out on sales, but depending on their returns process, are also paying to get that item back into its inventory. The problem is so big that returns accounted for more than $816.7 billion in lost sales for U.S. retailers in 2022, according to the National Retail Federation.