The fleece of the Churro sheep is nearly straight, coarse and long. The Churro sheep was introduced to America by the Spaniards. It is used by the Navajo in making rugs and blankets.

Romney is a medium diameter with an average staple length of 6.5 inches. Romney is one of the major sheep breeds in New Zealand. Other ones include Perendale, Coopworth and Lincoln, to name a few. Romney fiber can be spun worsted with a light twist making a soft yarn for sweaters, or clothing fabric. Coarser Romney wool, when spun with a tighter twist is suited for furnishing fabrics. Romney fiber dyes well, producing yarn with good colour.

Merino wool is the finest of all. (Sorry, some of the images at this link take a while to load.) It's average diameter is 15 - 25 microns and staple lengths are 2 - 4 inches. Merino has a very close crimp, and can be spun into a very fine yarn, suitable for lace, fine clothing or baby blankets. Merino is naturally a very white fiber, so when dyed, produces light coloured, pastel shades.