Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity

I used this for the first time on a run yesterday in the 95 degree heat. I would give the flask 6 stars if I could. It’s designed perfectly for runners. It sat unnoticeably in my pocket and did not leak at all. And required minimal effort to take a sip. We’ll see how long it lasts but it may be one of the best gift I have received in the past few years.

I used this while on vacation in Europe. As most people don't want to use a water fountain these days, something like this is great for a quick sip while out and about while traveling. I would put it in my cargo pocket or my cross body bag. It didn't leak. It's small enough to not worry about the bulk or the weight.

I'm used to a hard-sided water bottle, so it's going to take me some time to adjust to this soft-sided one, but the product has been great so far. The top, thankfully, doesn't leak.

I’m always on the run and have needed medications that I have to take at different times. Not always a water fountain handy and this works great! Was just in Utah and helped with hydration in their dry climate! Top quality and easy to use and keep clean. By all means, get this! And when empty, it’ll glide through TSA at the airport. Fill it on the other side in one of those fancy water refills!

My fault for not looking at the description better. It did not hold enough for my needs. Instead of trying to carry around a bulky water bottle, I was looking for something easier to carry around in my "biggish" purse. This reminded me of a short baby's bottle.

Love these! Fits into your pocket, I use for cc skiing. Durable, easy to use.

I love using these for my runs!

Great collapsible water bottle. Love to carry in my back pocket when hiking