TechSpec's C3 Grip Material is a comfortable gummy rubber measuring 0.100" thick. The C3 Grip Material acts more like a "Pad" offering the ultimate in comfort and grip. The durameter of the rubber has a soft gummy feel allowing your knees to sink into the material, almost like memory foam. Squeeze your tank and feel what solid seat position is and does for you. Will assist in reduction of vibration, increase in control, and increase in comfort.