It really does flex and move with your horses back.The leather is really soft, which makes for a more comfortable seat and fit.This can be a benefit for both horse and rider, and beneficial when saddling as well. It is light weight, so it is easier to lift and handle.
Let me start by saying that there are some benefits for a owning and riding a flex tree saddle.
Ideally, then the horse is able to move under the saddle, because it has a flexible tree that will move with them. A flex tree saddle is built with a tree that typically has a dual-bar system which is intended to provide both stability and flexibility in the saddle.