Prologo Dimension Space Saddle - T4.0 Anthracite/Black 153 mm. The Dimension Space is designed to fit riders that need a semi & round shape with medium-low pelvic rotation/flexibility and wider ischial bone distance. The Special Channel we call PAS (wider and deeper) eliminates numbness and reduces the compression of soft tissues improving blood flow in the pelvic area. The extra 7mm of padding with special density foam and 153mm width ensures better comfort for longer rides. Prologo has created this product for women and men with a greater distance between the ischial bones that therefore require a wider saddle. This saddle is focused on extra comfort for the all-round rider and all genders.