The Nago Evo is a unisex semi round saddle ideal for medium to long distance riding. This X10 model has a shape and padding that is refined for 110-150mm travel mountain bikes and XC/Trail applications.Specifications:Size (mm): 280 X 135Weight (gr): 265Base: NylonRail: T2.0Cover: MicrofiberPadding: Light foam – Active DensityTechnologies:ESD: Ergo Shape Design: This is a refined saddle shape developed as a result of biomechanical studies done by Prologo over several years. ESD saddles feature a slender front area and a short rear area that quickly reaches maximum width. This permits a round pedal stroke allowing the rider to maintain a natural position. The legs of the cyclist have more space during all phases of the pedal stroke reducing friction and increasing alignment and performance. Finally the opening swift of the rear part of the saddle helps the rider to find the correct support and support of the ischial bones. This prevents sliding forward and any rotation of the pelvis.T2.0: Chromium rails with a high hardness index. They provide the perfect blend of mechanical resistance and compliance over a long lifespan. The material is chosen for its ability to deal with impacts and stresses.