Prolite Relief Pad GP Wide 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 and offers a wide fitting. Machine washable and quick drying. The Prolite range offers 3 in 1 protection for your horse: 1. Prolite absorbs impact from rider movement. Read more… 2. Prolite disperses pressure points over a wider area. 3. Prolite absorbs lateral movement and remains still against the skin.