Sky
when I'm on the bike and i'm riding i don't worry about the saddle. If i go into a restaurant when it's raining i cover the saddle in the handy plastic bag I always carry for times like that. Also for transporting the bike in the rain; i always have that plastic bag. Don't waste your money on that brooks saddle cover; water goes RIGHT THROUGH it.

Your saddle might suffer if you do really long rides in the rain. My DH has ruined two brooks saddles already; he does 200 k's and 24 hour rides...