Platypus Gravity Works 4L Men's and is just the insurance

and is just the insurance you need to prevent unexpected damage to your mattress from ruining your trip

and bring your gear back safe

An adjustable sternum strap and upper compression help stabilize your belongings

Stuff Sack Size

Platypus Gravity Works 4L Men's and is just the insuranceFiltering up to 1. 75 liters a minute without any pumping, the high capacity GravityWorks 4. 0L water filter is one of the easiest and fastest ways to get filtered water in the backcountry. Ideal for bigger backpacking groups or basecamps, the system has an 8 liter total capacity, easily supplying filtered water for drinking, washing up, cooking, and cleaning. No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard workyep,