TRIWONDER Soft Flask TPU Foldable Running Water Bottle BPA-Free Collapsible Hydration Flask for Hydration Pack, Ideal for Marathon, Cycling, Hiking, Climbing (250ml/8.45oz - Pack of 2)

Easy to fill and no leeks. Fits into running vest really well.

I bought these for use in my running vest and they are ideal. Quite difficult to get rid of the chemical smell/taste but I think that is a common thing. Unfortunately after a few months use I got a tear in one of the bottles so I'm down to having only 1 left. Guess that's just a bit of a hazard with these being the softer material

I have been using these for years now. Never leaked, i keep them in the freeze between uses & there is no taste or smell from them. They are so convenient, i have used them in my hydration pack, waste belt & also put one in my running shorts pocket, for short warm runs. The fact they roll up when empty is good for longer runs, better than hard bottles.

I took a bit of a gamble on these straws. I wanted to use them to adapt the HydraPak / Salomon soft flasks I had. To do this I needed to twist the straws through the HydraPak lids. It was a 5 minute job. Top tip - twist, don't pull. The fit is very snug and they don't leak. Once installed I also replaced the bite valves with the HydraPak valves. As others have mentioned, the flow rate of the valves is low (roughly half according to my quick experiment). Luckily the valves are compatible so it wasn't a big issue. Having done all this, they are perfect for what I need. I purchased them so that I won't need to crane my neck to use the flasks in my hydration vest. No noticeable taste after rinsing them through a couple of times.

I generally run 5 to 15km and this is perfect to take a little hydration with me. Fits in my small chest running vest and east to use with the king straw. Came with a tea bag inside which had removed that plastic smell, no aftertaste either. Great value and ideal.

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.

First the good The 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 good They 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 bad The 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.

I do not like to use hydration vests (personally) so I have a belt and the 500 fits perfectly in there. This is a plastic product and used regularly so I guess it will start leaking at some point but overall nice product.

Cleans everything nicely. Also great for keeping the bladder open. I use for my kids straws as well.

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Tras ver algunos comentarios me esperaba más sabor a plástico. Yo no lo noto apenas. Está muy bien y a buen precio

I loved this so much I just bought a second one. This bottle fits perfect in the front of my Nathan running vest. I especially love the long straw - I don’t even have to get it out of the pocket to drink. I originally got one for electrolytes and was going to use my bladder on my back for water, but I’m going to test out two collapsible bottles for some of my longer trail marathon training runs. I think they’ll be much easier to fill at aid stations.

stinken, und darauf trinken ist voll der Miste, vor allem, beim Radfahren