Selle San Marco: Selle San Marco takes care of the younger cyclists with model that because of its size is particularly suited to the physical characteristics and anatomy of a child. To ensure exceptional performances even to the children, today the Sprint Dynamic features a light weight Manganese rail. The design was developed to optimise the fit and ensure excellent power transmission in aerodynamic positions. FEATURESRail: ManganeseShell: Carbon Fibre ReinforcedPadding: BiofoamCover: MicrofeelSize: 250 x 134mmWeight: 204gSaddle Profile: Closed / WavedUse: Road / Off RoadColours: Black/BlackMANGANESE RAILSThis material increases the characteristics of the frame by improving its resistance to wear caused by shocks. This type of rail is used in the Dynamic saddles.CARBON FIBRE REINFORCED SHELLNylon with high properties, enriched with a high proportion of long carbon fibre, in order to reinforce the characteristics of rigidity, stiffness and durability without compromising the weight.BIOFOAMBiodynamic structure that follows the movements of the pelvis during pedalling, guarantees comfort, reduced weight, lasting resistance and ideal support. The “closed cells” surface ensures water is repelled from the padding.MICROFEEL COVERBreathable and hard wearing cover. It is lighter than traditional materials and less deformable. Anti-skid effect with an extraordinary grip on the saddle. Biocompatible material.