500ML filtered soft flask
HYDRATRAIL PURE FLOW FLASK 500
A 500ML soft flask with integrated filtration for runs, hikes and everyday outdoor hydration. Lightweight, squeezable, BPA and PVC free.
Choose your water source
Use a trusted tap or the clearest available fresh-water source. Avoid stagnant, salty or visibly polluted water.
Membrane filtration
The 0.1 micron membrane is designed to reduce bacteria, protozoa, sediment, turbidity and microplastics as you squeeze and drink.
Activated carbon
The activated carbon attachment helps improve taste and odour. It does not replace membrane filtration or make chemically contaminated water safe.
Know the limits
Do not use seawater or brackish water. The filter does not remove dissolved salts, radioactive substances or every chemical contaminant. If contamination is suspected, do not rely on filtration alone.