Prologo Scratch M5 PAS is the new saddle that use 4.0 technologies; innovative in terms of size, shape and ergonomics, they are suitable for multiple uses - disciplined (Road / Off road), but also suitable for triathlon). Thanks to the new “T SHAPE” design, size and ergonomics the M5 SCRATCHES are suitable for Man / Woman use. The measurements are 250 x 140mm in width and the weights vary depending on the configuration: the Nack saddle- worn vest weighs only 149gr while the Tirox 196gr. The new MSS Multi Section System seating system, designed in co-operation with the Politecnico of Milano, helps improve comfort and performance; the active foams separated from each other create 5 zones working in an smart and individual way favoring the natural movement of the pedaling phase both of pushing and pulling, absorbing the vibrations that the fiber body transfers to the over-saddle. The Round Shape of the M5 / M5 PAS allows the pelvis a natural rotation, creating stability and support for the lumbar areas; moreover the distribution of the pressures on a greater surface. The PAS system (perineal area system) is a channel designed to eliminate pressure spikes and numbness by improving blood flow. Its special ergonomic design, assisted by foam with variable density, eliminates contact points in the genital and/or prostatic areas. The PAS channel is ideal for users who prefer performance combined with comfort over long and medium distances.