An effortless brush
"Using the extra large STF brush is like using cheat codes, it feels too easy to work up a lather, but nobody's complaining. It paints on the lather or face lathers equally well and the fibres of the brush do not have a springy resistance to a change in direction of your swirls on your face. On top of that, the fibre tips are very soft, but the face feel manages to mimic that of a very good silvertip badger uncannily. The fibres of the knot aren't too densely packed either, which means the brush isn't a lather hog, allowing for good flow-through of lather (and water when cleaning after use). If you know a badger purist, you should give them one of these brushes if you're trying to convince them to give synthetics a try. Both the manufacturer of the fibres and Muhle's employees can be proud of what they've made."