Serfas E-Gel Hybrid Bicycle Saddle With Cut Out 90-Day Comfort Guarantee on all saddles Patented I.C.S. Infinite Comfort System RX & Deep Groove designs Dual Density base technology Hybrid size saddle with Patented Dual Density Base E-Gel top layer for frictionless comfort with cut out ICS Technology sor supported comfort Deep groove design for soft tissue protection