I absolutely love my Thermos Water-Bottle! Easy to fill and clean, keeps water cold. The bottle opening is large enough to accommodate standard ice cubes, which was particularly helpful when I was craving icy water through pregnancy. The lid locks securely, and never had an issue with the bottle leaking. The round inner seal in the lid has the potential to fall out and get lost; but I’m careful to wash and replace the seal/valve straight away so I don’t misplace it. I’ve bought several water bottles over the years, but continue to default to my trusty Thermos one! Comes everywhere I go, in the car, on my bedside table, on the desk, in the school pick up line... All in all a fantastic product and definitely recommend.

I have been using this product for over a year. Often I have left it in a hot car in summer and still it keeps the water cold.
Now I have 2 of them, one always on my desk. The pop cap system is very convenient when driving and it has a very good fluid flow for drinking. I can't fault it!

It keeps water cool for hours. Add some ice cubes and they're still there hours and hours later - even overnight. It is meant only for COLD water so ignore the negative review. It's an absolute must for any school student.

I bought 2 of these and 1 FUNtainer one for my 2 yr old after reading great reviews. They are great quality but no matter how many times I try it, following the instructions to the letter, it does not stay cold as described. The company states stays cold for 12 hrs but after 4 it is back to room temperature and that is in the house!!! How it would stay could in a hot car I can't imagine. I rang the company and they had no suggestions. Wasted my money.
Good quality
Does not do what it is suppose to.

Have used this bottle for about five years. Everything about it is fantastic, durable, keeps water cold for 24 hours even when in a hot car all day. It is easy to clean as the lid screws off the wide neck, love the straw as well, making drinking when driving easy.
Keeps water cold, durable, like the straw in lid so easy to drink whilst driving.
Nothing.

This water bottle does what it says, it stays cold for hours. You need to put cold water in it but after that you don't need to put it in the fridge. Would recommend to just about anybody from adult to child at school. The best water bottle I have bought and I have bought many.
Stays cold and is well made
A little more expensive than most water bottles but worth it.