A flat saddle built for road riding. This saddle is made with Prologo's carbon composite base a special compound that has allowed Prologo to make a saddle under 145 grams but still maintian the stability & performance of heavier saddles. It also comes with a nack rail a nano carbon fibre fused with kevlar & aluminium to create a superlight rail that is balanced & will not deform. This saddle is also used by Saxo-Tinkoff's Alberto Contador. Specifications: Size (mm): 270 x 132 Weight (gr): 149 Base: C3 base Rails: Nack Cover: Microfiber Padding: Light Foam Technologies: Nack Nano carbon fiber rail. Carbon fiber Kevlar & aluminum filaments seat-post clamp area treated with the production process called Braided Carbon Rail (BCR). This is done in order to obtain “the perfect fusion” & uniformity of the several type of fibers & materials. The result is a balance structure & resistant to penetration.