UltraFlask™+ Filter Cap Colours:GREY-HP BLUE Our Frontier and Passage Collection

Our Frontier and Passage Collection is designed to nest inside Frontier Cookware for space-saving packability

ensuring resistance to tears and wear in demanding conditions

GORE-TEX Invisible Fit is a lightweight

Compatible with 2L reservoir

63mm suspension fork

UltraFlask™+ Filter Cap Colours:GREY-HP BLUE Our Frontier and Passage CollectionRun 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 &