Believe it when they say horse hair is in between a boar and badger brush. It is right in the middle when it comes to water retention backbone and softness. I used it on MWF and it was perfect because it had enough water to lessen the soap enough stiffness to break it down in seconds and the lather was amazing. I have badger and boar brush and go back and forth between the two but the horse hair is perfect for what I want. I highly recommend trying one is you want a scruffy feel of a brush and still get a warm well hydrated lather. Everyone talks badger and boar but the horse definitely needs to be in the conversation.