Suburban Stitcher sock yarn is made up of:

75% superwash merino
25% nylon
460 yds/100 grams per skein

This yarn is super soft and yet very strong. It is sturdy enough for your next pair of socks, and also soft enough to wear next to your skin in a hat, shawl or even a sweater. One skein should be more than enough for an adult pair of socks.