BellFlask15 oz. Plastic Flask, Patented, Flexible, Metal-Free, Reusuable, BPA-Free with Carabiner Clip and Filling Funnel

I saw another review say these are not good for backpacking, but I had the exact opposite experience.I took all three of these on a 7 day backpacking trip in the High Sierras. We setup base camp at 9,980 elevation just below the tree line, and did day trips up to 11,000 elevation. I had all three flasks filled nearly to the top and stuffed into my backpack and encountered absolutely zero leaks or issues at all.Filled them with Double Chocolate Liqueur, Praline Sipping Cream, and Vanilla Peppermint Baileys to mix with coffee and hot coco. They lasted the entire tirp without a drop leaking anywhere it was not supposed to go. They are super lightweight at half an ounce each, and hold around 18 oz of liquid. Great deal, and I highly recommend these.

Compact yet durably constructed!

I had previously ordered a cheaper version of this type of flask and I thought it did the job. This version was impressive in comparison. It has a quality feel and it's much more comfortable when stashing it in your pants. It also has a Guage that tells you how much you have in it. How would you add your beverage? No worries, they include a perfect funnel. What if you want to Clip it instead of stashing it? They thought of that too! It comes with durable removable clips. This is a must have for liquid consumption on the move.

I found the collapsible funnel almost useless. It wanted to fold in on itself during use. I probably could have made it work, but since I had a solid one within reach, I used that. The clips would work, if you needed them. I repurposed them. The flasks themselves are great. I put some high-priced tequila and whiskey in them, had no change in flavor and no leaks. This will be my go-to, the next time I need something like this.

These worked great for the purpose intended. I recommend, thank you!

Threw this in my backpack and put stuff on top of it. Tossed my backpack around and no leaks. I like the fact that it hold more than most collapsible water bottles. The only thing thats not great is the measurements on the side are just for looks. Not sure why they even put them there then. But they don’t affect functionality, so oh well, all in all a good collapsible water bottle so far that holds much more water than most it’s height.

Was looking for something lightweight, leakproof to put in checked bag to Jamaica to carry my preferred adult beverage and these were perfect ! No leakage, easy to fill with a funnel and throw in our cooler . Would be great to throw in your purse or bag for an event and easy to wash and reuse

Durable and reusable. They do not risk leaking, are durable, and discreet. Great for luggage storage,Especially for plane travel.

This is a very basic flexible flask. As others have suggested, I see no point in putting a huge flask label on the item on both sides when its supposed to be discreet. The main problem with this item is that when the flask is open, the locking ring can be easily lost as it is not held into place by anything. If that ring is lost, i think this item would start leaking. Tested with water first and held up fine even when i applied some pressure when fully closed. Item did not leak. The real test will be real world conditions.3 stars due to the locking ring issue.After using it this and washing it, the flask takes FOREVER to dry out. I left it out and open for 2 days and it was still wet inside. Be sure to have a fan to circulate air to dry it out or else it will take forever to dry inside.