Collapsible Water Bottles 2 pack Travel Water Bottle Portable Hiking Water Bottle with Leak proof Twist Cap 500ML Reusable BPA Free Silicone Water Bottles (Style1, Black+Purple)

Works perfect for hanging on backpack. Easy to use and collapse.

We used these on our trip to Europe and they were great! Easy to use, compact to pack, lightweight. My only very minor complaint is the safety clasp broke very quickly. But I can add a more sturdy one and really not a huge deal. I would definitely recommend these to others.

As described the top comes off for cleaning

It did have a plastic smell when we received it, you need to be careful that the lid is screwed on tight in two places. The collapsible features worked great, i kept it short most of our trip. Fully extended it is flimsy.

The kids really like them

Bought these to bring to Disney work. Collapsed, they fit great in the carry on bag. Made it easy to fill with ice and bring into the parks each day. Once empty, we could collapse them and throw them back in the backpack.

I bought these expandable bottles to take with us on a flight. First time I filled them up fully, when we tried to drink out of them, its spilled water because they are so squishy. Also had a plastic taste to the water. Not sure if that will go away with more washing. My advice is not to expand them fully when filling with water. They worked fine when kept short. Clip is handy to attach to your personal bags or carry-ons. Small enough to pack as well. Im sure we will use them again knowing the faults now.

Had these when I was in Disney and t he y were great.