Check out the different seats on this page to find your new dirt jump seat.
Dirt Jump Seat - Four types of dirt jump bike seats
Generally, four types of seats exist for BMX bikes: Tripod, pivotal, combo and rail. All seat types can be used for most dirt jump bikes, but pivotal and combo seats are the most common for dirt jump bikes.
A tripod seat is mounted from the bottom and sits in a fixed angle, so you are not able to adjust the angle of the seat.
Pivotal seats are mounted from the top and it is possible to change the angle of this type of seat.
The combo seat is a BMX seat mounted on a seat post, which does not make it possible to separate the two parts.
A rail seat is mounted on a seat post and on rails, which makes it possible to move it back and forth.