Ergon ST Core Evo Women's Saddle - SM/MD, Black/GrayErgon ST Core Evo saddle features an ergonomicaly shaped relief channel to provide comfort over long distances. Twin shell with BASF Infinergy core sandwiched between isolates the rider from the road surface. The Ergonomic core dynamically adapts to pelvic motion providing a floating ride sensation. Product Details: 3D damping adapts to pelvic motion with minimal pressure and reduced friction Gender specific relief zones accommodate the unique