I've heard good things about the Kimberly synthetic. I have a Wintec aussie and love it!
The mare in my picture is the one I am trying to decide on a color for. I am leaning towards Blaze orange but still not 100% on it yet. I am going to throw my Morgan's Lime bad on her and see how it looks. I'm also going to try a blue and a burgundy halter on her and see how they look. Even though I prefer bright colors.
I have a thread in Tack and Equipment for her here
PS. Her name is Blaze so Blaze orange is rather fitting.