The bontrager nebula plus saddle casually cruise around town seated atop the nebula plus saddle it brings advanced technology to the hybrid rider to sustain higher performance plus it39s loaded with ergonomic technology like a rubber elastomer that allows the saddle to subtly rotate with the natural movement of the pelvis while pedalling bontrager nebula plus saddle features fitness posture 4 features an upright pelvic rotation to go further faster the flexform desi