Berroco Yarns Tutu Yarn is pure fantasy to the extreme. With diaphanous layers of colors and textures that are sheer and opaque and soft and willowy, the yarn itself is practically already a fabric. Simply cast on a few stitches on a very big needle. Knit for a few minutes and you will have a creation that will turn heads. Named for its ballet costume inspiration, soft streamers of tulle make this unique and wonderful yarn the talk of the town.