It looks to me like her coat is silky but I'm an amateur.
Does she mat up easily?
I voted cotton coat for Gus.
Sometimes it is better than others -- if it has just been washed and conditioned or even after a good brushing it shines and looks silky (he can even go a couple of days without brushing and not be a matted mess) but I know he really has a cotton coat. On bad days he poofs out like a cotton ball. Plus, I see the yorkies with a silk coat and his just can't compare.
After reading that again I realized a lot of the same can be said about my own hair. lol We were meant for each other.