It folds up into a small cube and opens easily. I have had travel bottles that made the water taste ghastly. I filled this with water and let it sit overnight. I refilled it and there was no weird taste at all.

I find these bottles to be a great addition for our Alaska adventure. They are light and no bad taste to the water. I used one all day yesterday and the water tasted just as good last night as when it was first filled. After using had water bottles I have to get use to the flexibility so as not to wash my face lol but had it down pat by end van of day.

I love this collapsible water bottle. It is very nice. I purchased to keep in my car for emergencies. This water bottle is really great quality. It holds 20 ounces of water. It's very soft a malleable as it is high quality food grade silicone. It's waterproof and leakproof. It's easy to clean and easy to use. You just fold along the lines. It comes with a little card that instructs you on how to get rid of the silicone smell. But to be honest, there is no smell. Mine doesn't smell at all. This water bottle is durable and sturdy and can be use anywhere. It's easy to fell as it has a wide mouth and a nice flip lid. It also comes with an extra band to strap on and use to carry the cup. A great value and find. I highly, highly recommend.

If you're looking for a compact water bottle for a good price then this is great for you. Pros- price- compact- straw folds well with the bottle- rubber bands work well as a carrier or for keeping the bottle compact- lid opens and closes securely- extra rubber bands included Cons- doesn't keep liquid cold, but that's not advertised.

Going on an international trip and wanted something for water that was easy to carry and easy to pack. These are perfect!!!