Serfas Full Suspension Cruiser Bicycle Saddle 90-Day Comfort Guarantee on all saddles Patented I.C.S. Infinite Comfort System RX & Deep Groove designs Dual Density base technology Steel rails,Lycra cover,Length 275mm,Width 280mm and Cruiser saddle for relaxed riding Rear Spring Suspension Full Suspension base Gel top layer for frictionless comfort Deep groove design for soft tissue protection