Completely collapsible for superior packing efficiency, MSR's burliest large capacity water storage and delivery system is perfect for everything from alpine- to road warrior-style expeditions. Features: Incredibly tough 1,000-Denier exteriors Laminated with an improved BPA-free food-grade lining for better-tasting water Can handle everything from freezing to boiling MSR's Hydration Kit accessory adds do-all versatility Svelte 3-in-1 cap lets you fill, drink and pour with greater ease Perimeter webbing allows for easy carrying and hanging BPA-free Weight: 0.2 kg / 6.9 oz  Width: 25.4 cm / 10 in  Length: 46.5 cm / 18.3 in Materials: PU MSR Dromedary Bag 4L