I travel regularly and I am always looking for ways to be able to avoid checking luggage. I have used packing cubes and the compression bags where you roll out the air. This bag is a GAME CHANGER! The pump works great, is so small and powerful. The bag filled with a week's worth of clothes and compressed down. I find if you push it too, you can form it even more to your needs. I bought a second bag for my boyfriend because he threatened to take mine!