So I was in the desert for a trip. I'll make this short and sweet. Lowepro 350 was with me every day. It poured on me with no rain cover. Outside of bag was soaked as fuck. Inside was dry. I smashed the bag off of rocks/trees 600 times while hiking. It still looks new and all equipment is perfectly fine. Not bad for a $120 bag My D90 got rained on worse than I'd like it too . I don't mind drizzle, but it was almost pouring. Finally put it away when it was totally soaked. Works fine. My polarizer was covered in rain/mud/piss/semen (well 2 out of the 4, i mean it wasn't even muddy ) and it took all pics fine. Wiped with cloth, came home and it looked fucking nasty. Few squirts of lens cleaner and cloth and it is perfectly clean and looks new. I think I'm finally past the point of caring so much about equipment. It takes a beating. With that said, do they make anything to easily store a filter in your pocket? I found myself taking the polarizer off and on during the day. I had a soft fleece which I threw it in, but I won't always have that. Do they make a nice holder that you can put it in and then in your jeans pocket?