The Professional Suede Brush cleans and brings up the knap in suede. Quality brush with strong brass bristles.
If the suede is shiny use a little piece of 120 grit sandpaper the bring up the knap even more.
Dust and dirt are suedes biggest enemy so use frequently and don't forget to waterproof.
This item also works great for cleaning the grass out of my golf shoes, I always keep one in by golf bag.