GravityWorks Filter Cartridge Baby & Children's Bottoms That's why the Number 2

That's why the Number 2 is #1 when it comes long-lasting toughness and active comfort

With a longer and wider footprint than the original ProFly

Remove the shoulder strap to use it as an organization bag

Extra-wide doors makes it easy to move gear in and out

our 20 oz Wide Mouth bottle is made with professional-grade stainless steel and a wider opening for faster fill

GravityWorks Filter Cartridge Baby & Children's Bottoms That's why the Number 2Effective down to . 2 microns and meets EPA Guide Standards for the removal of bacteria and protozoa. Approximate filter life of 1500L depending on quality of water filtered.