Follow the link to Ístex Álafoss Lopi No. 2. The pattern can be downloaded from the source page

Free pattern instructions in Icelandic for an Icelandic sweater with matching hat and leg warmers. No longer available in English.

Sizes 36-58 given.

Size 36/38: color A 400g, color B 200g, color C 100g
Size 56/58: color A 700g, color B 300g, color C 100g