The fiber content of this yarn is Lyocell also referred to as "Vegan Silk".  It is sustainable and compostable.
 
First produced commercially in Mobile, Alabama almost 30 years ago, lyocell is currently enjoying a lot of attention as a plant-based fibre used for clothing. It is primarily made from eucalyptus leaves. It is a sustainable fiber as eucalyptus trees grow quickly, without irrigation and virtually any pesticides, on land no longer fit for food.
 
The production of lyocell doesn’t use toxic chemicals, and 99.5% of the dissolving agent can be used repeatedly. Compared to cotton, lyocell has the potential to use less than half as much water in production. The fabric’s breathability is also great for the planet, as it doesn’t start smelling as quickly and can be washed less frequently, saving water. The fabric is soft, has moisture wicking properties and is hypoallergenic.
 
Fiber Content: 100% Manufactured Fibers - Tencel / Lyocell
Weight: Light worsted
Yardage: 180 yards (165 meters)
Unit weight: 100 grams (3.53 ounces)
Gauge: 16.0 to 20.0 sts = 4 inches on Needle size US 7 - 9 or 4.5 - 5.5mm or Hook size 4.5mm - 5.5mm (I)
Care: Dry Flat (do not tumble dry). Machine Wash Gentle in cold water.
 
Color: Solid color