If you are looking at this you had the same issue as me where the hydroflask didnt fit the car or trucks cup holder. I made this to fit both cars and allow for a coffee cup with a handle. This was my first design so its not the best, but not terrible either.
This fits our 2017 Subaru Forester (you need to lock your cup holder)
This also fits a 2017 Chevy Colorado
Hydroflask_track-car_combo.stl | 47.4KB |