Funny story.... On our cruise I used these. Nervous to get caught. I get one of my bags has a tag, " COME TO FRONT DESK, SOMETHING IN A BAG NOT ALLOWED" Or something like that. I said DANG! i GOT caught....I get to front desk and they send me to the basement where my bag was.... IT WAS SCAREY! I get to my table and there is my bag all waiting for me. I'm nervous, I didn't want anyone to know I was being a bad person sneaking on alcohol. a NICE MAN steps up and says, "I'm sorry but can you open the bag we have detected some items not allowed". I am so upset with myself. I open the bag and he points to an electrical outlet with 6 plugs, you know where everyone can plug in their phones. That's it?! The plastic flask bag was RIGHT under the outlet! They never detected it!!! OMG! I was never so happy! They work and I will buy them again. :)

All of them made it on board the ship I set sail on. ALL OF THEM! :) So much cheaper than paying for alcohol on the boat!

love these flasks, used them last weekend on a party pontoon boat, we threw them around in the water and a few were even passed underneath the boat, no leaks! would buy again :)

I love these things... I always bring them to festivals with me... I also think plastic flasks are just the coolest thing to drink out of. It's like an adult juice pouch. Awesome quality!

Worked exactly as described.Great product,easy to pour and fill.I will be ordering more soon.