It may look funny, but the ISM Adamo Prologue saddle is all about performance. The unique design alleviates pressure on the perineal artery, so you can ride faster, stronger and harder without any of the numbness or pain that can be caused by traditional saddles. The saddle has been made longer and narrower to accommodate improved movement while pedaling. This saddle is ideal for riders who are all over the saddle while riding, shifting back and forth between multiple positions. It"s ideal for triathletes and long distance cycling. The patented ISM design that eliminates the "nose" part of the traditional saddle Longer cutout on the front arms provide better circulation Measures 270mm long and 135mm wide for a more anatomical fit Integrated tri-hook under the rear of the saddle allows for quick placement and removal of bike in transition area 100mm of fore-aft rail adjustment Chromoly rails are durable and stiff.