Modern saddle panel fillings give saddle fitters a wealth of options when it comes to achieving the best possible saddle fit. While some work particularly well in saddles designed for mature, well-developed sport horses, others are better suited to young, still-growing horses whose musculature can change dynamically from week to week. The most popular fillings include silicone fibres, natural or polyester fibres, and synthetic-natural blends. They are most commonly available
