Sierra dot com has Wigwam Gobi liner socks for $1.99 each. These were normal $7 about6 years ago but about $5 is found nowadays. Currently $7 at Campmor. Only $1.99 at Sierra.

There are at least two listings, so if not the right size look for the other listing. Black or White men's shoe size: S 2 to 4-1/2, M 5-1/2 to 9-1/2, L 9-1/2 to 12-1/2, XL 12 to 15.