TRIWONDER Soft Flask TPU Foldable Running Water Bottles BPA-Free Collapsible Drinking Flask for Hydration Pack for Running Hiking Cycling Marathon Climbing

The media could not be loaded.  I’ve had these for a few years now and love them .Fit perfectly in the Amazon running vest of the same name .

Very lightweight and useful for long runs

These are great value for money, I've not had any issues with the water tasting funny it tainted. They don't slosh about in my hydration vest and the straws are a good length, having two means I can carry a good amount of water evenly over two pockets.However, these are not the easiest to drink from - Biting down on the straw I don't get a lot of water out per draw. But, this could be more down to practice, I've only used them on two runs and I personally don't need much water when running.If you're looking for soft flasks I'd recommend them.

Nice bottles and the straw/ tubes are good, but they make whatever you put in taste like plastic, have tried all of the Google/ you tube remedies but it still taste horribly of plastic. Shame otherwise brilliant

Been after some soft flasks for a while and I thought I would try these out as I have a bladder made but the same manufacturer. Would've given 5 stars but one is fine and the other one leaks which is a pain. Looks like I'll have to find better made ones.

Great quality design, but as per other reviews, the pervading rubber taste is overpowering with first use, but to be honest, when you’re at mile 10 in the bakin heat, you don’t really care and with more ise I've noticed the taste diminishing. The quality of the design and build compensates, however. I’d buy again.

I've used both flasks a number of times and they always leak at the neck. I can't seem to get them tight enough.

First the goodThe bottles are a fraction of the price of other brands, this doesn’t make them cheap as others are just outrageously expensive, I’ll go with “they’re a fair price”.As far as soft bottles go, they work. Can’t see any difference between these and my Salomon ones, same material thickness, same construction method - I.e plastic welded seams.The not so goodThey stain just as badly as the salomon ones if you put hydration tablets in them, however, to be fair, the instructions do tell you this.The badThe bite valves do not supply water at the same rate as the salomon ones - be prepared to spend longer drinking.The tops leak. No matter how tight you try and screw the tops on, one of them will not seal properly, and this after only 2 weeks use. You don’t actually lose that much liquid but the front of your vest will get wet.