Made a Remix from crisb's nitecore-hc65-v2-protection-cover to accomodate for the button guardring that I glued around the button to protect it from accidentially switching it on.
Print in ABS FusRock GF 10% also works fine, did not have to be a flexible material for me.
The author remixed this model.
Wider gap for button to accomodate for my button guardring https://www.printables.com/model/1210703-hc65-v2-button-protection-frame