Hydrapak UltraFlask+ Filter Cap Electronics Up to 8 hours of

Up to 8 hours of listening time2

weight 340 g/ pair

Strutted vents in the fly for excellent air circulation

like your smartphone

Full-length side zippers

Hydrapak UltraFlask+ Filter Cap Electronics Up to 8 hours ofRun fast, filter faster. The UltraFlask+ Filter Cap threads seamless onto all of HydraPaks 42mm running flasks and handhelds for a lightweight, straightforward filtration solution. Featuring a traditional bite valve and cap design, runners can drink freshly filtered water directly through the high flow Blaster valve. FILTER FACT SHEET FILTER USER MANUAL *Effectively removes common waterborne bacteria, such as E. coli (99. 999%) and parasitic cysts