Lamb's Pride superwash sport weight 3 ply wool in a rich teal heather. Sadly, it is discontinued. I have this and a few other colors. To me, it's more like a heavy fingering, and I knit it on US 4 needles, a little tighter than the recommended US 5. If you were making socks, I'd use a US2 or 3 needle.
Machine washable, but do use a very gently cycle. Personally I always handwash my handknits, and recommend that because machine washing involves a lot of rubbing against other fabrics, resulting in more fuzzing, and loss of stitch definition.
Color Precioius Emerald; lot 001
50 gr/180yds | 6 sts/inch on US 5 needles
Machine wash or hand wash, cool, gentle.