You’re looking for a Chrome bag. They’re made in American and guaranteed for life. I just bought the Buran III (my third chrome bag), and it fits everything I can throw at it and then some, and even when it’s really weighed down, it’s still extremely comfortable. Almost all their bags also have a stabilizer strap to stop the bag from falling to your side when you’re cycling. A lot of their bags also have a carry handle which I like because I can treat them like briefcase if I need to. The only negative thing I have to say about Chrome is that I had a problem with a bag that they discontinued, and they tried to offer me the original retail price of the bag in store credit to satisfy the “guaranteed for life” promise. That wasn’t cool because I had bought the bag 5 or so years prior and their prices had gone up, so I couldn’t really get anything comparable for that price. I fought them on it and eventually they did give me enough to get a comparable bag. Osprey does bag replacements by volume not by price, which is how it should be, but osprey doesn’t make messenger bags like chrome.