42 Mm Filter Cap Matte Black - ChromaPop Glass Polarized Gray and stylish—ready for long runs

and stylish—ready for long runs

is exactly what you would expect from the leader in track mounting technology

Elastic Waistband

only smaller

42 Mm Filter Cap Matte Black - ChromaPop Glass Polarized Gray and stylish—ready for long runsFilter water on the go. The new 42MM Filter Cap threads seamlessly onto all sizes of HydraPak's 42MM thread Seeker water storage bags and Flux flexible bottles morphing them into filtration solutions. The end result being lightweight filtration kits that can either be used to squeeze filtered potable water into other camp bottles and containers or to drink freshly filtered water from a Seeker or Flux. Both deliver fast and easy water treatment around