If you lose your water supply in the middle of a three-week stay on a big wall, your trip is in trouble. That's why MSR's Dromedary Bags are made of durable, abrasion resistant Cordura nylon. Laminated with food-grade polyurethane these water carriers are tougher than typical hydration products are flexible even in freezing conditions. We dare you to try and rupture or destroy this bag in the backcountry many have tried but the Dromedary wins time and time again. Laminated with food-grade polyurethane. Suited for extreme temperature variations, from freezing to boiling. 3-in-1 Cap lets you drink, fill or pour with ease. Multiple grommets laced with webbing make for easy hanging and carrying. Compatible with MSR Waterworks and Miniworks filters