We had Hekos and have since gone for ClimAirs.
Linky for ease of finding the right ones :
https://amzn.to/3J3REDz
Hekos are held in with clips only - not a problem, until they are. Ours lasted fine for 18 months and we recommended them everywhere we went. Then one day, wound down the window and one fell out, briefly scratching the door as it fell.
We went for ClimAirs in January and haven’t looked back.
The design is a little more shapely, darker and a more natural grey/black tint; Hekos are a redder tint. The ClimAirs also feel significantly thicker.
As an aside, if you have an acoustic pack, you CANT use Hekos due to the thicker glass. You’ll chip the glass during use as the clips are too narrow.
Only downside of the ClimAirs is a TINY screw which holds them in place - but something we’re comfortable with given the security and peace of mind.