I'm thinking about making my own pad to protect my back from the massive amounts of heat my seats hold in during the day. It feels like my back is cooking and my shirts always get drenched with sweat.

I plan on buying a thermo-tec type material and sewing a cloth or vinyl cover over it. Then I will use a combination of elastic black straps with velcro at the ends to fasten the seat cushion onto the seat.

I think we all can use this mod.

 

Here is a sketch.