Collection: 4-ply sock wool
The classic among sock yarns — tried and tested, durable, and infinitely versatile.
4-ply sock yarn is the standard for everyone who wants to knit socks the way they should be: fine, dimensionally stable, and durable. The needle size is 2.5 to 3.0 mm, and the number of stitches ranges from 40 to 72 stitches depending on shoe size. This makes 4-ply yarn ideal for delicate patterns, cable details on the cuff, or simple everyday socks that last for years.
Our bestsellers in this category — Austermann Step 4 Color Exp and the Merino sock yarn — consist of a virgin wool-polyamide blend (75/25), which combines softness and robustness. The color gradients of the Step line automatically create colorful patterns, without any color changes during knitting.
For a pair of adult socks, you generally need two 50g balls — for children's sizes, a single ball is often enough.
You can find the exact number of stitches for your shoe size in our free sock chart.
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Opal Hundertwasser II | 4-ply sock yarn 100g | Color 2104
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser III | 4-ply sock yarn 100g | Color 3200
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser II | 4-ply sock yarn 100g | Color 2101
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser III | 4-ply sock yarn 100g | Color 3202
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser I | 4-ply sock yarn 100g | Color 1432
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser III | 4-ply sock yarn 100g | Color 3206
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser II | 4-ply sock yarn 100g | Color 2107
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser II | 4-ply sock yarn 100g | Color 2102
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser I | 4-ply sock yarn 100g | Color 1434
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser I | 4-ply sock yarn 100g | Color 1437
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser I | 4-ply sock yarn 100g | Color 1431
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Step 4 Color Exp | 420M - 100G | 342 - Stavanger
Regular price €9,95 EURRegular priceUnit price €99,50/kg€9,95 EURSale price €9,95 EUR -
Opal Hundertwasser I | 4-ply sock yarn 100g | Color 1433
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser III | 4-ply sock yarn 100g | Color 3207
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser III | 4-ply sock yarn 100g | Color 3205
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser II | 4-ply sock yarn 100g | Color 2106
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser II | 4-ply sock yarn 100g | Color 2105
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser I | 4-ply sock yarn 100g | Color 1435
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser III | 4-ply sock yarn 100g | Color 3201
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser II | 4-ply sock yarn 100g | Color 2103
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Opal Hundertwasser I | 4-ply sock yarn 100g | Color 1430
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Step 4 Color Exp | 420M - 100G | 361 - Pink
Regular price €9,95 EURRegular priceUnit price €99,50/kg€9,95 EURSale price €9,95 EUR -
Fortissima 4-ply Merino Sock Yarn 100g | Color 105 - LAGOON
Regular price €10,95 EURRegular priceUnit price €109,50/kg€10,95 EURSale price €10,95 EUR -
Step 4 Color Exp | 420M - 100G | 16 - jeans
Regular price €9,95 EURRegular priceUnit price €99,50/kg€9,95 EURSale price €9,95 EUR -
Opal Hundertwasser III | 4-ply sock yarn 100g | Color 3204
Regular price €10,50 EURRegular priceUnit price €105,00/kg€10,50 EURSale price €10,50 EUR -
Step 4 Color Exp | 420M - 100G | 43 - Taiga
Regular price €9,95 EURRegular priceUnit price €99,50/kg€9,95 EURSale price €9,95 EUR -
Fortissima 4-ply Merino Sock Yarn 100g | Color 110 - AGATE
Regular price €10,95 EURRegular priceUnit price €109,50/kg€10,95 EURSale price €10,95 EUR -
Fortissima 4-ply Merino Sock Yarn 100g | Color 101 - DENIM
Regular price €10,95 EURRegular priceUnit price €109,50/kg€10,95 EURSale price €10,95 EUR -
Fortissima 4-ply Solid Sock Yarn 100g | Color 2040 - NIGHT BLUE
Regular price €7,95 EURRegular priceUnit price €79,50/kg€7,95 EURSale price €7,95 EUR -
Step 4 Color Exp | 420M - 100G | 341 - Bergen
Regular price €9,95 EURRegular priceUnit price €99,50/kg€9,95 EURSale price €9,95 EUR -
Step 4 Color Exp | 420M - 100G | 359 - Turquoise
Regular price €9,95 EURRegular priceUnit price €99,50/kg€9,95 EURSale price €9,95 EUR -
Step 4 Color Exp | 420M - 100G | 89 - Pacific Masculine
Regular price €9,95 EURRegular priceUnit price €99,50/kg€9,95 EURSale price €9,95 EUR









