we're here with deborah robson to chat about a new exotic fiber. deb. >> hi, eunny. >> so tell me about yak. >> yak is fantastic stuff, and it's new to the market for people who use yarn--knitters, weavers, everybody else--because it's been difficult to separate the different types of fiber that come off the yak. >> and is this--so this is like, a raw... >> this is raw yak. so we have hair. we have the down, which is actually what we want in the yarn mostly. and there are mid-grade fibers in there, and it's been really complex industrially to separate those. but now we can do that, and so we are getting fantastic yarns like this pure yak. >> and we want to use just the down. is that right? >> well, traditionally, people use the whole mix, because the hair adds durability, and you can separate out the hair and use it for ropes and things, but we want the down because it's exquisite. it can be finer than cashmere. it's just gorgeous stuff. and it comes in a lot of different colors. it comes in brown, black, white, gray. but what we really want is tha