just noticed these by alite
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at 10.00 the price is right and i like the way it folds into the provided carabiner

i too have a collapsible platypus for about 4 years now with steady use. it hasn't leaked yet. thought this brand might perform the same but with improvement of the built in carabiner. guess not. after posting saw the vapur on amazon. many reviews state that its very durable, took some abuse and didn't leak, a very few did say the product leaked. with this, better to stick with the platypus and just rubber band it. besides, the platypus has  hole for a carabiner... thanks MM!

I've been using Naglene Cantene's for the last 5 yrs or so. I have 2-32oz ones, and 2-48oz. They've held up well except for 1-32oz one that developed a leak because I kept setting it down a rough rocky areas instead of on a padded area.

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All of the bag have a gusseted bottom, so if you use a gravity type water filter, they'll stand upright and you just keep an eye on them.

A little trick I came up with for those of us that like a cool drink on a hot day is to go to the bank and get some canvas coins sacks, or something similar as long as it's canvas and big enough to fit your water bottle inside, but not too bulky.

I put my traveling Cantene in the bag and secured it with a Bungee Bob around the neck of bottle. As you travel, keep the bag wet and under your seat or out of the sun. The evaporation will keep your water nice and cool even on a hot day.

For little bags like that vapur bottle, use a old cotton tube-sock, roll it down and secure. Same principle as the canvas bag.

IF you have a wide mouth bottle(s) of any type, then you should think about getting some of these. Makes them MUCH easier to drink out of.

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If you go to the fold-able plastic bottle, sooner or later you’ll get a pin-hole leak.

I have a stick of that glue you fix holes in fishing waders, the kind you melt the top with lighter and dab on the hole.  That works great on seam areas.

On flat areas I have a roll of that black waterproof tape you can buy at the auto parts store that seals coolant leaks in radiator hoses. Between the two you can fix many things besides just a leaky water bottle.