The real name for the fluffy chicken....Silky. I had a Great Aunt with fluffy chickens when I was a small child. I was, and still am, completely enamoured and fixated on them!
It's feathers are known to feel like a combination of silk and satin. Their feathers are the same as down rather than a normal feather. They are very docile and look like cloud puffs wandering around the yard.