What is the softest brush for mineral make up?

I love my Powder Brush from the Bodyshop. It's so soft even though it has synthetic bristles. I think it's around $20. I also love my Essence of Beauty Kabuki Brush. It's $10 and they are only sold at CVS. All their brushes are amazing though. And if you want to spend a lot more money, buy a MAC 134 flat powder brush or a MAC kabuki brush. Good luck =]