GravityWorks System 4 L Lifestyle which keeps it from freezing

which keeps it from freezing in cold weather so you stay hydrated on even the coldest peaks

Fit: Active

Hook and loop closure provides adjustable wrist closure to give more room to put on glove

Its adjustable arms and nose piece provide a fully customizable fit for any face shape or size

Durable compression zipper compacts bulky items or expands to create space for more items

GravityWorks System 4 L Lifestyle which keeps it from freezingThe Platypus GravityWorks Water Filter System 4 L offers a convenient, high capacity solution for backcountry water purification, ideal for group camping, basecamps, or emergency preparedness. Utilizing gravity for filtration, it eliminates the need for pumping, delivering clean water efficiently. The system includes two reservoirsone for unfiltered water and one for clean waterconnected by a hollow fiber microfilter that removes 99. 9999% of bacteria