S/I MODEL X GEL FLOW BOOST BLACK 145mmEconomical, racing minded saddle with features from Selle Italia`s higher end seats at an affordable price point Gel padding covers the whole saddle and ensures a better shock absorbing function in every condition Special Green Tech production technology that creates a 100% sustainable product assembled without the use of glue, solvents or harmful materials SuperFlow technology drastically reduces all physical limitations caused by prolonged pressure