I use neoprene over booties, they work fine for keeping water out and add a bit of insulation and wind blocking. We get our share of rain riding here, if not for booties and fenders I wouldn't ride 5 months of the year. Lots of different styles available, take your touring shoes with you and try them on at the store. Only thing I might add, don't wear your best shoes on the trip, booties are great, but if you ride on wet roads all day for a few days, they will be wet along with everything else you wear. Don't forget leg warmers and clear lens for your glasses, you'll need them along with dark ones. Quack quack!