40 oz wide mouth mermaid green lifestraw Filson's philosophy has never changed:

Filson's philosophy has never changed: Make sure it's the absolute best

tested to resist 2kN of force

Secure latching system prevents accidental opening during transport

The AirCushion backpanel adds standout breathability and helps prevent pressure build-up on long climbs

while the polyester–spandex construction provides directional stretch that hugs your body without feeling restrictive

40 oz wide mouth mermaid green lifestraw Filson's philosophy has never changed:Double insulated stainless steel, to banish lukewarm drinks forever Carrying just over a litre of liquid, this 40 oz insulated bottle from Hydro Flask is ideal for full day adventures into the wild. Using a unique double wall vacuum insulation, the bottle can keep drinks either hot or cold for hours on end. The wide mouth design makes filling and cleaning easy. Its large enough to drop ice cubes into the flask too. A new powder coated process is also