What a great idea - a two litre bottle that will fold perfectly flat when it's empty, so you've a lot less bulk in your pack. The Liquitainer Hydration Bladder is a free-standing design with full inflation on both ends. It is treated with antimicrobial Grunge guard™ for taste-free water and offers extreme temperature resistance, from boiling liquids to ice cold water: in addition, 5mm closed cell PE full insulation will keep your water cool for hours.
Liquitainer so flexible it doesn't even make a sound when you roll it up and it is very resistant to cracks. A sports-style push-pull cap makes drinking easy. It has a 3D air mesh back and shoulder straps made in heavy-duty X2 PU coated 600D PES fabric.