The Osprey Ultralight Stuff Pack is a minimalist pack that we can stow in our suitcase or pack to whip out for shorter day trips. The padded shoulder straps and sternum strap let us carry a light load comfortably while the side stretch mesh pockets can carry water bottles with us as we tour a city or drop our main pack and slip on the Ultralight Stuff Pack to bag a summit without all the extra weight on our back. This little beauty packs down small but comes up big when we want a lightweight pack that can carry our essentials without weighing us down or hogging our precious packing space.