Hydrapak 42mm Filter Cap - Flux shorts and sustains high-quality effort across

and sustains high-quality effort across repeated intense bouts — whether you're on the track

Whether you're chasing personal records or pushing the pace during training

adapted to fit your low to no foot arch

More precise tooling eliminates wasted space between folded layers

Hydrapak 42mm Filter Cap - Flux shorts and sustains high-quality effort acrossDescription Filter water on the go. The new 42 mm Filter Cap threads seamlessly onto all sizes of HydraPaks 42 mm threaded Seeker water storage bags and Flux flexible bottles, morphing them into filtration solutions. The result is a lightweight filtration kit to decant into that can be used to squeeze filtered potable water into other camp bottles and containers, or to drink freshly filtered water from a Seeker, Flux, UltraFlask or SkyFlask. Both