The Serfas EG-8240E E-Gel Hybrid Elastomer Rear Suspension Bicycle Saddle features a friction-free E-GEL® layer designed to behave as a second skin and reduce chafing by moving with the motion of the rider thus reducing uncomfortable friction. The Serfas EG-8240E E-Gel Hybrid Elastomer Rear Suspension Bicycle Saddle features Serfas® Deep Groove™ Design central pressure eliminating channel, Dual Density® Base, four-way stretch moisture-wicking Lycra cover, elastomer rear suspension, and heavy duty steel rails.