18 liter capacity | Personal item compliant* Weatherproof — waterproof fabric + sealing zippers Packs into its own pocket for transport LiteCush™ shoulder straps — structured, padded, breathable, and packable Two external access zipper pockets Dual external water bottle pockets Side compression straps with buckle DuraGlide™ sealing external zippers 100D Bluesign® recycled nylon, PFAS free Anti-theft zipper security loops Specs: 18 × 10 × 7.5 in Weight: 9oz 2-year Warranty The 18L Packable Backpack lives for crowded markets, misty jungle walks, and last-minute detours. Lightweight and weatherproof, it shakes off rain and disappears into its own pocket until next time *Personal item compliant on ~80% of the top 50 airlines globally.