The Prolite adjustable riser pad comes complete with removable Prolite inserts to alter the saddle fit. This riser pad is ideal for the horse or yard owner using one saddle of different shaped horses, or on a horse that changes shape between the seasons or recovering from muscle wastage. Prolite is a revolutionary lightweight gel-foam that is 1/4 of the weight of traditional gels, but with the same shock absorbing and weight dispersal properties. Machine washable and durable, prolite has established itself as the most effective and lightweight shock protection you can use on your horse.