I have a lot of bags on my bike because I serve a homeless ministry that delivers food and supplies to people on the streets. I depend on my Stashers bag as do the people I deliver to. Not long ago, the zipper malfunctioned on my bag. I emailed Stashers, and, not only did they send me a new bag, but they repaired my old one. These bags are solid, functional, and the people that make them are dedicated to supporting their customers.
In any weather I can put a subway sandwich and a thermos of coffee in this bag, and get it all to work completely intact.