If it's just a coat/slicker the wieght issue isn't a problem. Just roll it tight and tuck everything neatly. Unwinding one of these with rain pouring on you can get messy. If you are lucky enough to ride a slickfork saddle ( the front is A shaped and not swelled out) you could roll it up,drape behind the horn and tie off to the front strings. This will make an impromptu bucking roll and help brace you going downhill. Watch out for stuff in your pockets and avoid tight belts and BIG buckles. Hopefully, you are riding the canadian national horse.They have even better manners than two footed canadians <img src="images/graemlins/tongue.gif" alt="" />