I bought this Kodiak Island "Grizzly" Atv bag and it leaks like a sieve!
http://www.sportsmansguide.com/cb/cb.asp?a=247716
I would not recomend it to anyone who was concerned about keeping their gear dry. The zipper sucks, it's a hard pull. I just use the bag to store tarps in. Thats all it's good for!
