Foldable Design: The foldable design makes these water bags easy to carry and store, saving space in your backpack or gear bag. Versatile Use: These water bags are versatile, suitable for various outdoor activities, including trail cycling and marathons. Durable Material: Made from durable materials, these water bags are built to withstand the rigors of outdoor use. Portable for Outdoor Sports: Ideal for running, hiking, and other outdoor sports, these water bags provide convenient hydration on the go. Large Capacity: With a capacity of 15L/2L, these water bags are perfect for long outdoor activities like trail cycling and marathons.