Prolite Relief Pad GP in Black. The Prolite Relief Pad provides under-saddle cushioning that can help relieve and prevent back problems without altering the fit of the saddle. The Relief Pad creates a maximum bearing surface under the points of the tree that helps to cushion and protect the back. The Relief Pad is perforated to allow for maximum airflow. Machine washable and quick drying. The Prolite range offers 3 in 1 protection for your horse: 1. Prolite absorbs impact from rider movement. 2. Prolite disperses pressure points over a wider area. 3. Prolite absorbs lateral movement and remains still against the skin.