Prolite Rear Riser Adjustable Wide in Black. The Prolite Rear Riser is a versatile, hard-working pad ideal for developing or changing horses or when using the same saddle on different horses. The Rear Riser Half Pad features Prolite inserts that can be added or removed as necessary to alter the depth at the rear. The Rear Riser can be used without any inserts as a standard Relief Pad. The Prolite Rear Riser Adjustable Pad is perforated to allow for maximum airflow and offers a wide fitting. The Prolite Adjustable Pad comes with 4 removable inserts, 2x thin and 2x thick for versatility. Read more… Machine washable. 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.