American craft supply makers

Every line below is a quote from the manufacturer, with the page it came from and the date it was read.

Both halves in one sentence, which is rare here

Imperial Yarn: "All Products Are Proudly Manufactured In The United States Of America With 100% American Grown Fiber."

For yarn the fibre is the product, so this is the strongest shape a claim can take on this site. It is the same sentence the sock shelf spends a whole page looking for, and the maker of the yarn is where it turns up.

The same line cites Fibershed's Climate Beneficial verification, which is an outside standard a reader can go and check rather than a phrase the company wrote about itself.