Had a USGI plastic canteen for awhile. Still have it but don’t like to use it, as it will leak water from the cap if it sits at a right angle. It’s supposed to be BPA-free but there’s nothing stamped on it to so indicate. It does flex a little.

Submitting this question to the membership hoping to find something better. Something well-made and durable, preferably Made in USA if possible. You Gentlemen have far more field experience than I do, or ever will.

Thanking you in advance...