thats what I got which is not right. Its a long post
So much for japanese quality control.
And this is the reason the seat cushion sagging on the left over time and then getting seat discomfort hitting the left bolster more vs having a more balanced/level position on the cushion.
upong digging further its interesting to see that the ventilated cushion is totally different than the only heated ones. For those curious ventilated cushion has handful of larger holes in the structure for the exhaust fan tubes which probably makes it less resilient over time.
The side bolsters are not that hard but they just cant compress when put on the seat frame because of the seat frame design.
This is where Mazda failed in my opinion. In the metal frame design. Its not designed like Toyota or other brands seat frames more "open". May be Mazda went this way for rigidity or thats their design from the past and they just re-use it on CX5 until the model gets phased away. Who knows.
The the original poster - My research shows that the seats and cushions are the same for 2019- 2024. The seat cushion on 2017-2018 is a bit different. But after 2019 its all the same stuff. Just 3 diff cushion types depending on the car Trim.
2017 and 2018 have different problems with sagging of the leather.
Seat foam is made by Gentherm - an American company.
Ventilated