Pikeur Ladies Diana Black, Riding Show JacketLadies Diana, Single Breasted, Show-Riding Pikeur Jacket. Silver emblem buttons. Black Collar and Single posterior vent for dexterity. Diana Dressage Coat from Pikeur® gives you just the right look and just the right amount of stretch for superior performance. This lightweight, quick-drying dressage coat is accented with beautifully finished buttons and constructed with a center vent.