After breaking a few of the plastic Nalgene caps clipping a carabiner to the plastic loop on a filled 1L bottle, I needed something better
So I just used a 4.5" hose clamp and a couple pieces of webbing sewn into loops.
Thought someone else could use this too
So I just used a 4.5" hose clamp and a couple pieces of webbing sewn into loops.

Thought someone else could use this too