The C-Bag is a medium bag from Brompton that's made from Cordura, has a 25 Liter capacity, and measures 16.5" wide x 11.8 high x 6.7" deep. It has an easy-adjust shoulder strap and closes via velcro straps much like a messenger bag. Inside it features a laptop sleeve and a small zippered pocket. On the bag's back (facing the rider) are two zippered pockets that are roughly water-bottle sized. Though the Cordura fabric is water resistant, for better waterproofing the bag also comes with an integrated hi-vis rain cover for unexpected showers. There is a small zippered pocket on the side of the bag (to the rider's right, while on the bike) and an elastic, mesh pocket on the left for a water bottle. The C Bag also features the same rigid frame as the T-Bag, so it can stand upright and hold its shape nicely. This bag cannot be used on a Brompton with an S-type handlebar. The C-Bag is available in a few different colors. This one is Black.