To achieve optimum results, we cross check yarns ordered from JohnLewis.com to ensure they all carry the same dye lot number. This means that all yarns ordered in a single transaction will come from the same dye lot. Sirdar Crofter DK is a beautifully soft, standard Dk, Fair Isle effect knitting yarn. Thanks to a spray dyed Fair Isle pattern, you can achieve the look but without the hard work. Tension: 22 stitches, 28 rows to 10cm on 4mm needles.