Top layer is a heavy, custom weave 100% New Zealand Wool blanket which is long lasting, durable, and good looking; oil tan wear leathers. 1/2" memory foam center helps fill in void spaces under the saddle. It continuously molds and conforms to the shape of the back then rebounds to its original shape when pressure is removed. This minimizes pressure points and relieves body stress. It is open cell, allowing airflow through the cells and pulling sweat away from the horse. 5/8" orthopedic grade felt bottom soaks up moisture, allowing heat to dissipate away from the horse's back. It conforms to the back while maintaining density, and provides excellent shock absorption. The ESP is a convenient one-pad system perfect for all disciplines.