Their burliest water storage and delivery systems.

Completely collapsible for superior packing efficiency, their burliest water storage and delivery systems are perfect for everything from alpine- to road warrior-style expeditions. Armed with incredibly tough 1,000 Denier exteriors and now laminated with an improved BPA-free food grade lining for better tasting water, these bags can handle freezing and the abuse inflicted by expedition crews and hardcore adventurers. Accessories like the Shower or Hydration Kits add do all versatility, and the new svelte 3 in 1 cap lets you fill, drink and pour with greater ease.