You asked and we listened! We bring you even more comfort and improved pressure distribution with the SMC4. Compared to the SMC3, the SMC4 offers softer foam and additional foam volume in the seat cushion. Pressure relief is maximized with a deeper 9 mm deep relief channel. An extra large seating area effectively reduces pressure points and distributes the pressure on the sit bones and pubic bones. Finally, the SMC4 features a flat profile for various seating positions. The SMC4 Series is the perfect and inexpensive choice for those riders looking to upgrade their current saddle. The SMC4 Comp Gel features gel pads for maximum comfort.