Purchased the 40L and 70L bag and both are awesome. I needed something I could throw in the truck bed and not worry about the weather. Would recommend and would buy again!
I bought the 40,70 and 120. I loved the 120 it was a great checked bag and the 40 was perfect for carryon. I haven't used the 70 yet but its a great midsize bag to check or for atv/vehicle travel. These were amazing for accessing my gear compared to my waterproof duffel. The zipper is a little stiff but with some lubricant that was provided it worked flawlessly for my alaska moose hunt. Id lubricate it about every 10th time getting into/out of the bag and it stayed smooth.
I've owned several 'waterproof' bags over the years that constantly fell short of my expectations. My first Big Stone bag purchase recently came in, and, wow- what a difference. This bag has lived up to the advertisements and I'm absolutely loving it. Now- I've just got to figure out if I want the 70L or 120L...