If you're into mountain running then you should definitely consider getting a filter system that works in-line with your hydration vest. The filter top also works with Hydrapak flasks and will filter 1000L of water on a single filter.
- Filters 99.9999% backteria and 99.9% protozoa
- Ultralight, compact, flexible, durable. Weighs 58g
- Ultra fast flow - filters up to 2L / min
- Shake to clean - EZ clean Membrane allows you to clean in the field. No backflushing required!