The SDG Fly MTB Cro-Mo Rail Saddle uses a lightweight nylon base, properly concaved for superior support. All Fly models incorporate an EVA foam, minimalistically designed with a snag-less, flat-forward, NO BS approach. Ideal for advanced cyclists with limited seated movements and those who prefer narrower, stiffer saddles. The Fly series is for power and performance, catering to a wide spectrum of disciplines and available in multiple designs.  SDG Fly MTB Cro-Mo Rail Saddle Features Flat forward design. Super-lightweight EVA foam with nylon fibre composite base. Cro-Mo rails. Weight: TBC. Dimensions: 260mm x 133mm. Disciplines: All Mtn, XC, Trail, Enduro.