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's Snuggly Baby Crofter Dk yarn is super soft with an eye-catching Fair Isle colour effect which appears as you knit. This favourable Dk yarn comes in a durable blend of 55% nylon and 45% acrylic. It is machine washable to make life easy, and is great for double knitting baby patterns.