I finally finished my son's Tychus hat. I made it out of acrylic yarn. Not my favorite to work with. I used Vanna's Choice made by Lion Brand. I have to say that I don't really care for their yarn. Almost every other skein had huge, nasty, unbelievable knots in them that I had to finally cut out. The other problem is how it totally dried out your fingertips when you knit it up. My son has a severe reaction to wool and yes even alpaca. That's why I had to use the acrylic. On the positive side he loves it! Can you feel my pain??!!!