LIGHTWEIGHT and ROOMY: 25L ultralight foldable small handy backpack. The backpack fits into an ultra-compact pouch, it's convenient and piratical for your trip. Dimension: approx. 18.8 X 11.8 X 7in. Weight 0.5lb .You would love that you can throw it in your suitcase or car and have an extra bag without it taking up space.