The Collegiate Chatsworth All Purpose Saddle is a lightweight, low maintenance synthetic saddle. Faux suede knee, adjustable knee blocks, and semi-deep seat assist with rider stability. As your horses level of fitness and shape changes, the simple & quick changeable gullet allows you to alter the width of your saddle to custom fit your horse. This Collegiate model is compatible with the Opti-Fit Series III gullets. *Please be aware, saddles featuring a colored gullet inside, are compatible with the Collegiate Series III Gullets.