HyperFlow™ Microfilter Oakley which has three times the

which has three times the airflow rate of the classic valve thanks to a larger opening and one-way inflation

3D Airmesh linings for breathability

Blade Length 19

plus adjustable ventilation for optimal comfort

HyperFlow™ Microfilter Oakley which has three times theIt will change the way you travel in the backcountry. The HyperFlow microfilter utilizes the latest Hollow Fiber Technology and our most advanced engineering to make water treatment so small and so easy to use, it will change the way you travel in the backcountry. Its ergonomic design, diminutive size and tool free maintainability make it just as appropriate on day trips as it is on multi day excursions. Add a filtration rate of 3 liters per minute