This genuine US Army issue collapsible plastic canteen bladder holds 2 quarts (1.89 litres) of water making it an ideal secondary bottle for extended use. Collapsible design saves space in your rucksack or bergen as you don't have bulk to contend with when empty. Allows you to carry several if needed. Convert this product into a hydration bladder and tube with the canteen hydration straw kit - see featured products below or search for product 'RC602'. Manufactured from BPA-free plastic. Made in USA. Capacity 2 quarts (1.89 litres). Dimensions: 18cm x 7.5cm approx. Weight: 138g (empty). Colour: black.