First I would consider consider your system. Any cantlebag or pack system is putting wieght on your mount's hindquarters.This may result in a unbalanced horse with sore muscles. Think about what a fat wallet in your hip pocket can do. If you look at any of the world's cavalries, pommel bags were a popular component. If you use a traditional "fish" slicker, the pleat will allow it to drape over much of your cantle anyway. This is what those old fish were, linseed treated cotton.Time gave them the yellow colour. It's a superior material to plastics that freeze or make enough noise to spook the dead. Be sure to "sack" your horse out with your rig. I showed up at my barn in a suit and tie one day. My mare thought I was the boogy man <img src="images/graemlins/blush.gif" alt="" />