Merch by Amazon is Amazon’s print-on-demand apparel program. You upload designs; Amazon lists them and handles printing, shipping, and customer service on Amazon. If your plan is “show up where people already search for tees,” that channel is the product.
It is not a design studio. You arrive with print-ready files. It is not a store you brand as your own. Listings live on Amazon, under Amazon’s program rules, dashboard, and catalog constraints. Those rules change; we will not invent slot counts, royalties, or wait times here — check Amazon’s current program pages.
For a seller who only wants Amazon traffic and is willing to work inside that program, Merch by Amazon is a coherent choice. For a creator who wants AI design, a profit check, and a shop on a link in bio, it only covers the listing. Amazon handles the buyer experience; you do not run packing or returns. That convenience is why the program exists. The cost is that the storefront is Amazon’s, not yours.