Video shows stockinette double knitting. I knit one needle on my 2-socks-in-1. Note how the left yarn (for the outer sock) always stays above the right yarn (for the inner sock)
by AhiluArts Kaithozhil
by Macrame Arts creation Classes
by HamaBeadPatterns123
by LoomaHat.com
by Svetlana Bersanova
by Crochet Mama
by Made With Love By Glama