Collapsible Water Bottle, BPA-Free Foldable Silicone Travel Bottle with Carabiner Clip Reusable Sports Water Bottle for Hiking Camping Gym and Outdoors 500ml – Light Purple

This Collapsible Water Bottle is made of thick silicone and is rigid when the bottle is full. Bear in mind it does lose firmness when the drink is consumed, so best to fold it from the middle where you hold it for firmness as the content volume decreases. I only put cold water in it for easy washing.UPDATE 3/8/24Found out my husband has an almost-identical collapsible water bottle bought from a well-known German supermarket, so compared mine with his. What I've found out are: - his bottle is more structured and rigid, mine is a lot softer - mine has thinner fabric around the sections where the bottle has folding movement than his.Given my latest findings, I've reduced the stars to 3.

I got this for water-on-the-go for my dog. The bottle collapses to half its size so I can keep it in my bag or even in the glove box of the car when not in use. The lid seals well with no leaks and the carabiner allows me to hang it from my dog bag or belt, and because it is not a hard plastic bottle it doesn't hurt when it bangs against my leg when walking! When done, it just requires a quick swill with water before leaving it to dry and then collapsing it again to be stored. Great item!