Holder with a carabiner loop for the thermos / insulated GSI MICROLITE 500 FLIP bottle.
Print it at 0.3mm af his gives it a nice snug fit or at 0.2mm to have it just a little bit loose, all personal preference..
https://gsioutdoors.com/microlite-500-flip.html
So now its possible to have it hang off your backpack / other
:::IMPORTANT:::
You need to unscrew the cap to get the holder on the bottle.
The author marked this model as their own original creation.