A difference you can feel Bontrager's Boulevard Fluid saddle puts your comfort first with patented fluid technology that moves with you to reduce pressure while you're pedalling. The full cut-out design and air foam deliver a difference you can feel on casual cruises through your town and neighbourhood. Plus, it has an integrated mount for a tail light! Patented Fluid Technology The patented Fluid technology moves with you as you pedal for less pressure and more comfort.