Doesn't rain here as much but I've been drenched once already. Which Tom Bihn bag do you use?
I have been using Tom's bags for work and travel for a long time.
My travel bags are the Western Flyer and the Aeronaut 45 (both with more than 500,000 miles and still looking great)! My work bag is a Pilot that functions well for me. Tom Binh is very high quality, durable and extremely well thought out in my opinion.