TPU Folding Flask: TRIWONDER Soft Flasks Collapsible Water Bottles For Hydration Pack - Ideal For Running, Hiking, Cycling & Climbing Review

I bought these bottles for first 50 mile ultra. I did two test runs off 5 and 10 miles a few weeks before my race. Bottles fit well in my vest. On race day one bottles started leaking at the seam and soaked shirt. Luckily I had a support crew out there to help hydrate me. Great price, but didn’t perform.

I recently bought a Triwonder Hydration backpack to replace my Camelback and bought both the small hard water bottles and these foldable ones. I absolutely love these and they are my go to water bottles, especially for any runs less than 10 miles --- I mostly run 3-10 miles. I primarily use these and remove the 2L water pack as they are light, easy to access and easier to get a quick drink while running. Yeah, the bottles still have a little plastic taste but it is not any worse than my…

It's a great product and everything works just as they say. The issue I had was that the bottle is difficult to hold when the water was low. The water sloshes to one side and made my long run frustrating for me.

I like the product ergonomics. It is easy to carry and the plastic bag is separate from the holder. It has one major problem in that I cannot get the smell and taste out of the plastic bag. I've washed it several times with various cleaners and it still tastes like plastic. I'm going to try and fill it with something other than water to see if that helps.

I bought these for my upcoming summer marathon training, wanted a little bigger bottle than the 5oz ones I have. They work well for there purpose, but I will say they are a lot harder to drink from then others ones I have. You really need to bite down and suck to get the water out. I'm on the fence if I will keep them right now.

It takes some getting used to if you had the solid plastic hand held containers. But it is easy to drink from and you can hold it a variety of ways. The bladder is a little challenging to dry out.

Perfect soft flasks to fit in the Aonijie 18L hydration running pack or to use solo and carry. Each flask holds 500 mL beverage which is ideal for about 2.5-5 miles of running depending on intensity. I've used these with hydration electrolyte carbohydrate solution and also just water, and they work easily and efficiently. The bottle does not take much bite force to open the bite valve and get a squirt of liquid, liquid is also ejected with very little squeeze pressure. Wouldn't use any other…

So I got the 12oz. bottle with a straw for the same brand running vest (love the vest) As soon as I got it, I washed it and soaked it in hot saltwater (I read other reviews on how this would get rid of the plastic taste/smell) Nope. Every sip has a strong plastic taste. I've had it for a week and I've used it for five days. It's still the same. I hope it decreases over time.The nozzle is also really hard to get water out of. I don't want it to look like I'm squeezing my boob every time I get a…

This is exactly what I was looking for. A small soft container to put in a pocket for a drink on a 2 or 3 hour walk. However be aware, the angled mouthpiece has a push/pull.on/off to it. I thought I had defective items until I figured this out. It's actually a good idea and great engineering.

I use soft bottle for spare water on hikes. It’s lighter than carry an extra bottle. Only wish I could attach a Sawyer Mini but the opening and treads are not compatible. Also wish there was a compatible cap. Other than that, perfect lightweight option to nalgean or water bottles and doesn’t have a bad taste. Easy to clean. Only used one of the 2 pack and it’s seen several aggressive trips. Seems to be holding up. No leaks or rips/tears.

These soft folding water bottles worked really well for an endurance obstacle course race I just competed in. I used them while competing for about 7 hours. They did solid overall. They were easily fillable and worked well in my hydration vest. The only issue I had with them is the bit valve to drink the fluids inside of them was very tough and didn't allow a very strong flow when trying to drink. This resulted in me removing the lid to drink faster/more than what I could get from sucking…

I like the idea of soft hand-held water bottles, but this one has a few flaws.First, the pros:*Does not drip. While you can't take a big sip of water at a time, you can be sure that you'll be able to take small sips until the last drop, without any dripping.*As you drink, the bottle becomes even more flexible. By the end of a run, I can essentially hold it folded over in my hand, barely noticing it. Much better than a hard plastic bottle.The cons:*Bladder opening is so small that you can't add…

I am an avid runner and want to bring my own water bottle when I am out. I find these bottles to be easy to use and super light. I like the fact that I can fold/roll the bottle into my palm when it's empty.