Product details:

Since you don't have a hump on your back to store water during extended outdoor outings, you'll just have to rely on MSR Dromedary Bags instead. Their rugged construction withstands the roughest adventures, and the completely collapsible design allows for efficient storage in crowded packs. In addition to being extremely abrasion-resistant, it can also handle water temps ranging from freezing to boiling. Perimeter webbing allowing you to attach it to your pack or hang it up at the base camp for quicker drying. The bonus 3-in-1 cap ensures effortless filling, drinking, and pouring from the Dromedary Bags. Plus, it's compatible with optional accessories such as the Shower and Hydration Kits (not included) for added versatility.Versatile 3-in-1 cap so you can fill, drink, and pour with ease
Low profile, ergonomic handle and wide-mouth opening for easy filling
Burly fabrics can handle freezing and boiling water