C.F.R.P.. Carbon fiber reinforced shell. Variable carbon percentages based on the needs and performance of the saddle. The mix of materials allows the shell to keep its shape over time yet is very strong, flexible and light weight. EVA padding: San Marco padding is the perfect combination of lightness and comfort. Comfort is improved thanks to the differentiated thicknesses, making the saddle more ergonomic in the Crucial places but without pointlessly adding weight. Microfeel cover Breathable and hard wearing synthetic cover that is 5% lighter and 35% less deformable from standard covers. Multilayer carbon rail with internal stregthening waist in aluminum. Makes the rails extremely strong yet light.