On Tue, 03 Sep 2019 18:29:20 -0700, AK wrote:

I am trying to find a bottle holder than can accommodate a bottle that
is 3.5 inches in diameter.

Not having any luck.

What do you want to carry?
A long time ago, I purchased a large bottle and carrier combo. I don't
know if it is 3.5",but it was certainly larger then the standard
waterbottle.

Andy