dye in the wool

To stain wool fibers with dye before they are spun into thread, thus making the coloration more permanent. This phrase has led to the idiomatic modifier "dyed-in-the-wool," meaning permanent and or firmly established, such as one's opinions. All of our products are handmade, and we always dye in the wool to ensure that your clothing's color remains vibrant for years to come. A: "My, this yarn is pricey." B: "Well, that company puts out high quality products and is known to dye in the wool." A: "Wow, companies still dye in the wool?" B: "Oh yes, of course. We don't want our colors fading on you over time!"