The Collegiate Esteem Dressage Saddle is a calf covered leather saddle with a deep seat and adjustable knee blocks. A leather wear patch on the flap provides increased durability. 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. 10 year warranty on the tree. 2 year warranty on the saddle. 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.