German yarn manufacturer Opal has an amazing range of very colourful multi coloured sock yarn. With many different ranges to choose from here is my selection.  All made in Germany

They all share the same yarn details

Composition: 75% virgin wool / 25% polyamide/nylon

Needle size:  2.5mm - 3.5mm or your preferred size for sock knitting

Weight: 100g

Meterage: 420m, 4ply

Tension: 2.5mm needles 30st/40 rows to 10cm square

Washing: can wash at 40 or less, however do not use fabric softener