From the manufacturer:
A traditional and ever popular 4-ply yarn. A favorite for knitting socks, gloves and fine garments. The superwash wool allows for machine washing and drying for easy care and also wicks moisture away from the skin. Nylon content improves wearability and lends a super soft hand for comfort next to the skin. This self-patterning yarn does all the work for you and features a great shade range with a mix of neutrals and brights.
-75% wool, 25% nylon
-1.75oz (50g) 166yd
-Super fine #1
-4"=32 stitches on size 2 needles
-Suggested crochet hook: D3
-Dyelotted
-Machine wash and dry