1.[Flexible Backrest]You can adjust the height of the backrest (11-15in) according to your own application, providing better support for the back. 2.[Larger Size]The spacious backrest (9.447.671.96in) and enlarged seat (119.442.75in) provide additional comfort by wrapping around the hips and expanding support points, and distributing weight evenly, making it more suitable for long rides than typical narrow saddles. 3.[Ergonomic Design]The curved design of the seat cushion is highly integrated with the hip line, and the streamlined narrow front naturally transitions to the wide seat design at the back, reducing leg friction during cycling and ensuring movement of the thighs. 4.[Sturdy and ]Its frame is made of hard high-carbon steel to enhance its load-bearing capacity, and the cushion is made of high-quality plastic, polyethylene foam, and PU, so you can experience a comfortable ride for a long time. 5.[Smooth Riding]The seat and backrest are filled with a soft and comfortable high elasticity sponge, effectively absorbing impacts and vibrations from all directions, and can quickly rebound to its original state, providing long-term protection for your smooth riding.