Doffey Lightweight Backpack, 25L Waterproof Packable Travel Hiking Backpack * Lightweight: 0.6 pounds lightweight & handy but very durable with high quality water resistant material. * Multi-purpose: An airport hero very useful for day-trip, 2-3 days hiking, cycling, camping, school, gym diaper, book bag even shopping and a great gift for everyone. * Large Capacity: Totally 25L capacity with 6 compartments and wide straps enough to carry all kinds of things and make you feel easy and convenient. * Packable design: Very convenient to unfold or fold into little bag with unfolded size: 18 X 11.5 X 6 inches (H x W x D); Folded size: 7 X 9.3 X 2.3 inches (H x W x D) * Lifetime Warranty: If there is any quality problem with the bag, please feel free to contact us for unconditional replacement or refund.