Azarxis TPU Soft Flask Collapsible Water Bottles BPA-Free 250ml 350ml 500ml 600ml for Hydration Vest Pack Running Hiking Cycling Climbing

Works well for being a light compact (self compacting) water bottle for my runs, the only real negative is it taste like I’m drinking from a rubber hose for the first few times, but that fades.

The bite valve cracked on my first use on one of the bottles causing it to leak down my back my whole run. Overall the other worked great with zero problems.

Love the flasks and they are perfect for my trail runs. One flask came with a leak between the bottle and the cap bit reached out to the companies customer service by email and they were quick to reply and realize the issue so great product and fantastic customer service!

I bought these to replace more expensive bottles and they worked great. I did soak them for 24 hrs in soapy water before I used them as others mentioned to get the plastic taste out. I used them in a 50K race and they worked. The 250 ml size is a good single serving drink amount. The opening to the bottle is a bit small if that matters. Also remember they are bite valves on the mouth piece so that might not be for everyone, but they don't leak.

Pro; this fit PERFECTLY in my running vest. Con; the taste is HORRIBLE, even after multiple washes and other attempts to get rid of the bitter, chemical taste. I would give this a negative star if I could.

I bought these to use to carry water inside my jacket when I was outside exercising in winter. they have a somewhat pronounced plastic taste, and there is no cover for the top drinking tube, so subject to pocket lint and what have you. It is a narrow bite valve, so the water volume is not great, but it is adequate. An adequate product, but not what I had hoped.

Love these flasks for my long runs! Very durable, no plastic taste and become smaller when empty for easy storage.

I like that it comes in a 2 pack to share with friends and family. I don't like that the nozzle doesn't provide as much water flow as name brands. It's more work to get water out. You have to bite harder and suck/squeeze at the same time to get water. I have a feeling it won't last as long with biting so hard on the clear gel like nozzle head. Otherwise, it looks nice and doesn't leak.