Collegiate Mentor Dressage Saddle 17.5

Seat size is 17.5. Adjustable thigh block in front of saddle. Wide tree. Gullet measures 5 inches at opening. Flap measures 17.5 from the stirrup bar down to the bottom of the flap. Lifetime warranty on the tree. You can fit 4 fingers along the opening of the gullet. Super comfortable seat.