b4eae2b8_ddles_Explained_by_Jim_Langley__Features
[Seat type] Mountain Bike [Ideal User] You ride a lot off road on challenging terrain where your body and bike take a beating. You move around on the seat a lot to apply body English on technical sections, for example sliding way off the back of the seat to safely descend a steep slope or perching on the saddle nose to keep the front wheel down on the steeps. [Features] 
Fairly narrow shape; medium padding to soften blows; light; shaped rear section to ease moving rearward; downward sloped nose for moving forward further; sometimes reinforced on the areas that touch down when you crash. A few models designed for aggressive off-road riding, feature extra length for even more fore/aft body position adjustments when jamming.
Bicycle Seats Bike Saddles Explained by Jim Langley
Features