100% recycled, "fallen virgin cotton" from Japan. The yarn is made from the cotton fibers that fall to the floor in the process of cotton spinning or weaving. The fibers are then spun to make this recycled yarn. RE re Ly is a chainette, so it is very easy to work with. It knits up beautifully. Lovely, crisp stitch definition! Available in Japan... and at Knit House. :-) Thank you, Chiaki!