The ST Core Prime Mens saddle by Ergon is a revolutionary ergonomic saddle designed specifically for touring bikes. It features a floating TwinShell construction with an ergonomic core that supports natural pelvic movements while pedaling. This core is made from state-of-the-art E-TPU materials, providing responsiveness and damping to effectively absorb vibrations from the riding surface.With its anatomically perfected shape, the ST Core Prime saddle effectively relieves pressure on the sit bones and prevents numbness and pain. It is designed to cater to the needs and requirements of touring and e-bike riders around the world.The upper saddle shell of the ST Core Prime is flexible, allowing for increased flexibility and comfort. The lower saddle shell holds the base and guides absorbed vibrations into the ergonomic core. The pronounced relief channel helps avoid numbness and provides extra protection for soft-tissue areas. Its wide and comfortable seat area is ideal for an upright or slightly inclined seating position, which is typical for touring riders.The ST Core Prime Mens saddle features the following specifications:- Shell: Nylon Composite- Core: BASF Infinergy (Closed Cell Particle Foam/E-TPU)- Rails: CroMo- Cover: Microfibre- Padding: Orthopaedic Comfort FoamFor sit bone width, the ST Core Prime Mens saddle is available in Small/Medium (9-12cm) and Medium/Large (12-16cm) sizes.Upgrade your touring bike with the Ergon ST Core Prime Mens saddle and experience the ergonomic revolution in cycling comfort.