All you western riders just convinced me that I need to buy some chaps. So specifically, what type should I buy? Anybody have links to specific sites that I can click and order? I don't need show chaps. I want something that will hold my fat rear on the slippery horse. Cool looking would be good as well.
This thread caught my eye because I ended up breaking out my chaps for a ride the other night. When the cold wind is blowing, they definitely help.
As others have mentioned, the intended purpose of chaps is to protect your legs, not to help stay in the saddle. However, the right kind of chaps can also have the side effect of a little more grip.
With this in mind, I would personally advise against batwing style chaps. They usually only cover the outside of the leg and there isn't much on the saddle side. My limited experience with chinks are the same - they usually seem to be shorter batwings.
You should probably look to shotgun chaps. The suede ones (like the ones linked in the first response to this topic) tend to be inexpensive and will give you the extra grip you are looking for.
If you are considering another style that doesn't fully wrap you leg, you should probably try them on first to make sure they give grip where you want. Remember that neither chaps or chinks will cover you "rear." :)
Someone else mentioned a suede/roughout saddle. Another good alternative may be suede pants. These should give you lots of grip (rear included) and may be more easily found in a local store.