This is a remix of https://grabcad.com/library/3d-printed-flexible-cover-for-gopro-session-1, check it out!
I wanted some protection for my GoPro Session after i smashed my very new Session 5 into some asaphalt. The model by Baris above is very nice but silightly bulky, so i remixed it to slim it down. This is intended to be printed with flexible filament like Ninjaflex or Hobbyking Flexible Filament. With ninjaflex, this case fits very easily due to stretch but you may need to slightly increase the scale for more rigid TPU filaments. I print with 5% infill to get as much flexibility as possible.
This print won't work for rigid filaments like PLA or ABS.