The best in dromedary bags meets the best in filtration performance. This high capacity, 8-liter system is made of high performance materials for long term durability for your water filtration or storage needs without having to worry about punctures or rips during your travels. The large cap allows easy filling, cleaning and leak-proof mobility, with an included smaller plug cap to seal off connection for water storage. It has multiple carrying options, while also boasting a simple but enhanced filtration system designed to maximize flow rate and prevent clogging. Highly versatile, you can even remove the filter from the gravity bag and use the straw on the go, or with a water bottle. It's the only system you'll need for you and the whole crew for as long as you're on your adventure – hangs from a tree or RV for quick hydration at base camp and requires only one group member to carry water for the crew. For every LifeStraw product purchased, a school child in need receives safe water for an entire school year.