Classic SensorFlex Cinch Straight Size:36" the frame comes with an Size:Small (72" 74") the frame comes with an antimicrobial coating o Contoured design provides anatomically correct fit and keeps the saddle in place to increase performanceo Channel down the spine provides pressure relief and allows for air flowo High quality American made wool felt provides natural shock absorptiono 1 4 " Air Ride(TM) core provides added breathability and shock absorption for your horse's protection and comforto Cutout underneath wear leatherso Your choice between a felt or merino wool bottom Inner felt insert provides plush feel for a better ride Recommended for use only with leather latigos to allow the horse to expand naturally