Super Compact: This 18L lightweight backpack can be folded into its attached storage bag for space saving. You can pack it away to fit in your palm and unpack to 18L capacity. Unfold Size 9.8 x 5.9 x 17.7 inch; Collapsed Size 3.9x 2.4x 5.9 inch.
Happy Hiking & Satisfaction Guarantee: Perfect for airport carry-on to avoid overweight charges. For warranty, we provide lifetime satisfaction guarantee and friendly customer service if anything goes wrong.