Ovation Airform Dressage Girth Ovation Airform Dressage Girth is designed with stainless steel roller buckles and elasticated inserts that allow easy adjustment and reduce pressure as the horse moves. With keepers that hold girth neatly in place. Sizes: 24″, 26″, 28″, 30″, 32 Color: Black. Ovation Airform Dressage Girth – Black Size: 32 in. Directions and Dosage Instructions. Storage and Disposal Requirements. Pattern Design and Style.