Cormo is a very crimpy wool that, when combined with a little extra twist, creates a beautiful, resilient yarn that has an amazing amount of stretch. Because it is so stretchy, the only way to measure it consistently is to measure it under tension (stretched).
Cormo Sport is a 3-ply yarn that, when used with needles larger than you'd expect, results in sweaters that hug the body with built-in ease due to the stretchiness of the yarn. If you are substituting for another yarn, use more Cormo.
Fiber: 100% wool
Yardage: 400 yd/4 oz stretched
Gauge: 5-6 sts/inch