*Traditional manufacture

The traditional manufacturing gives us a comfortable sitting, thanks to the spring and the blown up front. The crin padd gives a firmness.

*Rigid manufacture

Because it's manufactured with actual materials it's faster to manufacture. The front is rigid thanks to nozag springs, the foam used for the padding is less firm than the crin.

*It is possible to have a fiber cushion (supple as a feather) or a foam cushion (more firm).