Why is this yarn called Baby Alpaca? The fibre doesn’t come from baby Alpacas. “Baby” is the category that defines the fineness of the alpaca fibre. This one has only 22 Micron, which makes it almost as soft as Cashmere. There is only one category higher than this: Royal Alpaca. But this is so rare and expensive that we have decided to go for the “Baby” as we think you cannot really feel the difference between those two.