The Carradice Super C SQR Tour is the “Big Bopper” of saddlebags. With a whopping 18 liter capacity, it can swallow a lunch, jacket, coffee mug and a change of clothes. With the SQR release system, the bag is a click away from coming off the bike for easy portability.
This is a great bag for randonneuring/audax as the bag and attachment system can be removed when not in use. If you’re very spartan or credit card touring, you could stash enough to do some overnight trips. The two side pockets are handy for carrying your spare tube/tools, sunscreen, phone, camera and other smaller items.
While the bag’s fabric is waterproof, the bag is not watertight. It’s a good idea to make sure that moisture sensitive items like electronics get some kind of extra measure of protection.