Collapsible Water Bottles 20 oz, Leak Proof, BPA Free Foldable Silicone Travel Water Bottle Cups for Taveling, Outdoors, On the go, Warm Blue

This is rated at 600 ml or 20 ounces. 600 ml is actually 20.288 oz. so only slightly off. If you filled it to the very top of the bottle you would get more than 600 ml and you probably spill some getting the top on or carrying it around. At the time of this review (4-6-24) there were a number of 600 ml collapsible water bottles at about the same price. The two main types are ones that you roll up like this one and ones that collapse into themselves which look neater and can be more easily stacked. I left water in the fridge overnight to test the taste free and the insulation capacity of the cup. I also heated water in the microwave for 2.5 minutes and put it in the bottle. Because of the collapsibility of the bottle I do not recommend putting hot liquids in the bottle. Because it’s not double insulated it will not keep liquids cold as long as a metal double insulated bottle. I filled it about half-way, dropped it on its bottom, head and side, and it bounced around without breaking.According to GoSili.com, “Silicone is straight up amazing! It is far superior to plastic, more durable, and more ocean-friendly than plastic. It lasts longer and stands up better against heat and cold than plastics. Because it’s completely inert and safe to heat to super high temperatures, it’s safe to use for both cold and hot drinks. It’s also safer for your family, too, with no toxic chemicals like BPA to worry about.”

I hadn't used a collapsible water bottle before, so I ordered two to test: this one and a similarly sized rectangular one. The other bottle actually crumbles into a small cube, while this one simply rolls up into a smaller shape. Both were impressive enough to be recommendable, but neither were entirely perfect.The biggest positive with this bottle was that it felt thick and durable. Given that the bottle is soft and squishy, I didn't expect it to be as leak proof as it is, but unless you jumped on the thing full-force, it didn't seem likely to spring a leak. I also liked the simple "milk bottle" appearance, and the wide opening at the top to drink from. Unlike the other bottle, this one felt open enough to clean more easily, and I'd be more comfortable storing a drink that isn't water in this one (weirdly I could imagine using this for smoothies, if you could pour them in successfully). Despite being made of rubber, it felt no easier to accidentally tip over than a regular bottle.The issues I had were pretty small, but notable. First, the entire bottle is smooth, and while this is rather pleasant to touch, it isn't the most sturdy to hold. Given that the soft material deforms in your hand, it can feel strangely unwieldy for a water bottle, and I feel like I wouldn't want to use it while working out. I think some form of grip on the sides would have helped a lot. The other issue is that it was not nearly as easy to collapse as the other bottle I tested. You have to put a fair bit of force into squeezing it and rolling it up, with the lid awkwardly half-screwed in (so it stays put but still lets air out), then you have to hold it in place, wrap a string around it, and lock it with asmall carabiner. This is compared to the other bottle, which you literally just have to squish and wrap a rubber band around. Also, while the compressed bottle is certainly smaller than a regular bottle, it's kind of an awkward shape, like a rolled up sock with a big plastic cap on the top. So while I could see it fitting stuffed in a backpack, gym bag, or purse, it looks a bit weird just hanging out on a shelf or countertop in that state (whereas my other bottle had kind of a cool looking compressed shape).I will say that those nitpicks feel a bit minor, and that overall, it is what you'd want it to be: a leak-proof, durable water bottle that you can tuck away while not in use.

This is a great travel companion with many great perks. The silicone bottle is very light weight not adding much weight to my already heavy carryon bag. It also collapses down to a small size so can easily be put in a purse/side pocket when not in use. The strap with its carabiner not only holds the collapsed bottle in shape, but serves as a handle for easy carrying or to attach to your belt loop. The bottle also has a flat bottom allowing it to sit on tables securely. And with it being dishwasher safe, clean up is easy and quick.The only two things I would caution people about this - this a silicone bottle so it will not keep drinks hot/cold and you will feel the temperature of the contents on the outside. Also, being silicone there is give so I would avoid filling the bottle to the very top or you will have a spill when you grab the bottle.

I wanted to get a water bottle that I can bring with me on my carryon luggage for my flight without it taking too much space while empty. This was a great solution, as during the security check, it was neatly folded in my backpack, then once I was at the terminal I was able to fill it up and use it on the flight.It has a smell when I first received it, and the included instructions suggest adding boiling water to it a few times until the smell is gone. That did the trick for me and it had no smell after wards.

I bought three different collapsible water bottles for a recent trip. Two where twist to collapse, then this one you just roll or squish flat. I found the twisting to collapse ones were easier to use and held their shape better when trying to drink out of them. This one was difficult to use once I took the cap off to drink. The other two had chug and straw caps so even when drinking the rigidity of the cap was still there to assist not accidentally squeezing all the water out on you. Those two also had a rubber band attached to the cap while this one came with a string and clips which I think will last a lot longer. I think it comes down to personal preference on which type of bottle you prefer, but I did find that since the whole cap on this one is removed to drink, it was a little hard to use on the move while hiking or in a boat on rough seas.

The product was not easy to roll and fold over. It kept popping out of its tie so I wasn't able to comfortably stir in my traveling bag. Had to put in big luggage.