Peak Squeeze Collapsible Bottle (with Peak Series Filter)

The Peak Squeeze is a collapsible bottle with LifeStraw's Peak filter built in - storage and filtration in one thing, so you stop carrying a bottle, a filter and a bag of adapters. It rolls down to nothing when empty.

Who it's for

Anyone tired of carrying a bag of plastic parts. Most filter setups are a collection of things - dirty bottle, clean bottle, filter, adapters, a bag to keep them in. This is one object at 110 g that stores the water and filters it, and collapses flat when empty.

Fast walking, trail running, day trips, and any pack small enough that consolidation is the point.

What it removes, and what it does not

The Peak Series membrane removes bacteria, parasites, microplastics, sand and silt. Viruses are the one thing a microfilter does not catch, at any brand, which suits Australian water where the risk is bacteria and protozoa.

Flow rate and capacity

Two ways to use it: drink straight through the filter like a normal bottle, or squeeze filtered water into a bottle or reservoir. That second mode is what makes it a group top-up system rather than only a personal one, and it is quicker than it looks because you supply the pressure instead of waiting on gravity.

Maintenance

Backflush when the flow drops off. It recovers most of its rate every time, so slowing is maintenance rather than the end of the filter. 110 g, 12 x 30.8 cm.

Freezing and storage

Never let a wet cartridge freeze. Ice splits the hollow fibres and the damage is invisible - the filter looks perfect and no longer filters. Camping below zero, keep it in your sleeping bag.