You're Out Hiking, Climbing or Camping and You Need Water to Keep You Safe and Hydrated but You Don't Need a Bulky Canteen that Takes up Valuable Backpack Space. With The Revive Canteen Water Bottle You Can Fold it or Leave it Flat and Store it in Your Backpack. When Full it Stands and Can Be Clipped Onto Your Belt with The attached Carabiner. This Will Become Your Favorite Canteen Buy One For Yourself and Very Best Friend.