Say hello to ISM’s lastest product, the Prologue. If you are already familiar with their Podium and Breakaway models, then you won’t find too much change. The Prologue has added foam and gel padding for a more comfortable and soft ride. ISM kept the longer length and narrower hamstring section to allow for more forward and rearward body movement. Chaffing on the inner thigh is minimalized by the integrated sloped front arms.