HydraPak Stow Collapsible Water Bottle – 500ml – Ultralight, Leak-Proof, BPA-Free, Filter Compatible Travel & Hiking Flask - Mammoth Grey

Leakproof for sure. But the aftertaste is horrible.

I bought this after researching soft bottles for a week so that I would be able to snowboard without a bag this season. Received it overnight, and it looks and feels absolutely awesome! very compact for a 500ml bottle and is soft enough that you can expel all air. American reviews for an older model showed cracked lids and things which I was initially concerned about, but this current model has a leak proof membrane nozzle that you activate with suction or by squeezing the bottle. Very convenient, no need to twist a top to drink. What ultimately convinced me to buy this was the lifetime guarantee as most other bottles seemed to have reviews of bad tastes, leakage, or burst seams.

Hab mir die Trinkflasche für Wacken gekauft. Die Menge passt optimal, dicht bleibt sie auch und an einen Karabiner kann man sie auch gut befestigen. Ja am Anfang richtig/schmeckt es etwas nach Kunststoff, etwas Luft und Ausspülen hilft.

Has worked perfectly this sunny Oz winter ski season. Fill and put in pocket for the morning & perfect for a quick gulp of water at the end of a run. Need to make sure air is removed before closing lid as this helps it collapse better as you drink. Only small so good to refill when you can but fits perfectly in my jacket pocket. No real plastic taste as long as it’s aired out overnight.

It took several washings out to get rid of the chemical/plastic taste and smell of the bottle’s material while drinking water from it. The lid has not leaked in my bag, lightweight and foldable, actually fits in a big pocket too. My partner has bought the larger size bottle, that smells of plastic too. We haven’t started washing out yet!