S-Curve Pad - Sedelogic New !!! - S-Curve Pad - Sedelogic New !!! Thermapt technology Thermapt technology is integrated in the new S-curve pad. In the rear part thermoplastic material is used which creates an even greater pressure distribution and peak pressure reduction in the "kissing spine" area. This layer creates a slight elevation which pushes the rider's weight slightly to the front of the saddle and protects the kissing spine area.