Twined knitting is a peculiarly Scandinavian method of two-stranded knitting, now most commonly practiced in rural forested areas of Sweden and Norway. Stitches are alternately knitted with two strands of yarn of the same colour, which are twisted after each stitch. The resulting fabric is durable and warm, only slightly elastic, with an even surface that rivals machine knitting in its appearance of knitting perfection.
Twined knitting was traditionally used to make mittens and gloves, caps, stockings and sleeves. Knitted ornamentation was added with purl stitches or by the use of a contrasting colour. Twined knitting, with its firm fabric, was particularly suited to decorative embroidery.
Source: Birgitta Dandanell & Ulla Danielsson, Twined Kniting: A Swedish Folkcraft Techinque, English translation by Robin Orm Hansen, 1989, Interweave Press, Loveland, Colorado