Platypus GravityWorks 4.0L Filter System Color:One Color or even on a backpacking

or even on a backpacking trip

an improved BPA-free food-grade lining ensures better-tasting water and can handle freezing

Its semi-rigid construction provides excellent stability

the perfect length to get out for regular cardio and calorie burns without completely emptying the tank

breathability

Platypus GravityWorks 4.0L Filter System Color:One Color or even on a backpackingThe reviews keep coming and one thing is clear, the GravityWorks system is changing how people filter water. Delivering four liters of filtered water is just 2. 5 minutes with no pumping, there's simply no easier or faster way to get safe water away from home. Ideal for bigger groups, the system's eight liter capacity eliminates both the worry and hassle of keeping plenty of water around for anything you need.