UltraFlask™+ Filter Cap Old Town An optimal style for cross-country

An optimal style for cross-country skiers

Whether through-hiking or overlanding

Adds water repellency and revitalizes insulation

A wonderful piece of camping equipment

Bluetooth Version: 5

UltraFlask™+ Filter Cap Old Town An optimal style for cross-countryRun 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. *Effectively removes common waterborne bacteria, such as E. coli (99. 999%) and parasitic cysts (99. 9999%) per HSF 42. Features FAST &