The US-40 Rackpack is a versatile heavy-duty addition to the US-Drypack range, delivering 28 to 40 liters of fully waterproof storage for everything from weekend escapes to extended moto-camping trips. Fully expanded, it offers generous room for a tent, sleeping bag, or roll mat, and features a dedicated tunnel that keeps tent poles secure and out of the way—perfect for building a complete camping setup on the bike. For day rides or lighter loads, simply roll both ends down to reduce the capacity to a compact 28 liters, ideal for stowing waterproofs, spare layers, or essentials.

Mounting is straightforward thanks to long hook straps and a hook-back system that makes securing the bag to a tail rack or pillion seat quick and stable. Reinforced strap mounts let you stack on additional US-Drypacks, OS-Adventure Packs, or other accessories when you need extra gear capacity. And when the ride’s over, the adjustable shoulder strap makes carrying the US-40 off the bike just as effortless as loading it on.