Bontrager Adventure Boss Frame Bag

The Adventure Boss is designed to be versatile, but fit depends on your frame's geometry and size. It uses adjustable straps to accommodate various tube shapes, or you can use the bolt-on mounts if your frame has threaded bosses.

It is water-resistant, meaning it will protect your gear from light rain and road spray. However, it is not fully waterproof, so we recommend using dry bags for sensitive electronics or items that must stay bone-dry in heavy downpours.

The bag attaches via secure straps that feature a rubberized coating specifically designed to grip the frame without causing abrasion. For a cleaner look, you can also use the bolt-on hardware if your bike frame supports it.

With a 5.9-liter capacity, this bag is sized for essential bikepacking gear like tools, tubes, a light jacket, and snacks. The two-compartment layout helps keep smaller items from getting lost at the bottom of the bag.

The interior is lined with a bright, high-visibility material that makes it much easier to spot small items like multi-tools or keys, especially in low-light conditions. It also features a unique topographical map design that adds a nice aesthetic touch.