It has been used for mountain climbing, so it shows signs of use, but it is still usable. Only water has been put in it. Product Description The Flex Water Pack has a capacity of 2L and can carry enough water. The lightweight and compact design is perfect for hiking and camping. It features a simple and easy-to-use design that allows you to see the remaining amount of water at a glance. ▪️Specifications - Capacity: 2L - Type: Flex - Color: Transparent - Material: Plastic