In order to print without the top and bottom layers you have to set the Top/bottom thickness to zero, and then you can adjust how firm or cushioned you want it by changing the infill percentage, I printed mine at 30% Gyroid.
3: Woman 10+, Men 7.5-9.5
Update Version 2:
-Smoother transition from insole to front of shoe.
-Relocated insole size text for better readability.