Material Durability: Crafted from EVA and TPU, these water bags offer durability and resistance to wear and tear. Transparent Tube: The 1L tube's transparent or blue color allows for easy monitoring of water levels during use. Large Capacity: With a capacity of 2L, these water bags provide ample water storage for long outings or activities. Foldable Design: The foldable design allows for easy storage and space-saving when not in use, ideal for camping and hiking trips. Portability: At just 112g for the 2L model, these water bags are lightweight and easy to carry on your outdoor adventures.