I have no idea what Viscose is but the robe is soft. I think it's softer than a terry cloth robe. It arrived an had static but a quick wash took care of that. Overall, I like the robe. It doesn't feel cheap and feels like a medium weight robe. It is long, going down to my calves, and I am 6'3". The only drawback I have for the robe is the belt length. It seems to be short. I am a bigger buy and would prefer the belt to be about 4-6 inches longer, but this is a small issue. It still works fine. If you are looking for a solid robe that is comfortable and will last a few years, you will probably be happy with this robe. I am.