Hydrapak stash 10 collapsible water bottle 10l description durable flexible and leak proof the 1l stash tm collapsible water bottle is designed to go with you packing down to roughly one fifth the filled size the stash tm bottles flexible design is lighter and easier to carry than hard bottles keeping you hydrated no matter where your adventures take you simply remove the cap and squeeze to pop open and twist n click to close the wide mouth screw top features an integrated bail h