An affordable performance orientated model the Mantra Open-Fit Dynamic is a great looking flat profiled race orientated saddle with Manganese rails from Selle San Marco.FEATURESRail: Manganese / Matt Black Shell: Carbon Fibre Reinforced Padding: Biofoam Cover: Microfeel Size Narrow: 278 x 136mm / ID-Match Ref S2 Size Wide: 278 x 146mm / ID-Match Ref L2 Weight: 228g / 233g Saddle Profile: Open / Flat Use: Road / Off Road Colours: Black/ Black MANGANESE RAILSThis material increases the characteristics of the frame by improving its resistance to wear caused by shocks. This type of rail is used on our Dynamic level saddles.CARBON FIBRE REINFORCED SHELLNylon charged with a high percentage of carbon fibre in order to get a perfect balance between resistance & lightweight.BIOFOAMBiodynamic structure that follows the movements of the pelvis during pedalling guarantees comfort reduced weight lasting resistance & ideal support. The “closed cells” surface ensures water is repelled from the padding.MICROFEEL COVERBreathable & hard wearing cover. It is lighter than traditional materials & less deformable. Anti-skid effect with an extraordinary grip on the saddle. Biocompatible material.NEW ERGONOMYPerfect balance between support zone & relief zone. The &34;big hole&34; helps maintain comfort under pressure & offers day long support & comfort: the central relief zone is long enough to work in all riding positions but a structural stability bridge prevents unwanted flex & twist.