The S-Bag is a smaller front bag from Brompton which can be used with the S-type handlebar and all other handlebar types. Its dimensions are 17" wide x 10.2" high x 6.7" deep and it has a 20 Liter capacity. It's made from Cordura fabric, which is water-resistant, but for better waterproofing, the bag comes with a high-vis elastic rain cover that is stowed in a small, zippered pocket. The main flap opens by undoing velcro straps on either the top or the bottom, revealing an interior compartment which has a laptop sleeve and a small zippered pocket. There are two elastic, mesh pockets on either side of the bag, and on the rear (facing the rider) the bag has two more zippered pockets. As with T- and C- bags, the S-bag also has a rigid frame which helps the bag hold its shape when on the bike and when standing freely. The S-Bag comes in a few colors. This one is Black.