Shires Aubrion Ladies Optima GX Show ShirtAubrion Optima is created for elite competition performance using modern design technology, innovative fabrics, and championship ready styling. Optima show shirts offer the rider advanced mobility and technical support through all levels and disciplines (Black and Navy are not permitted in GB affiliated competitions). The cut allows a contour fit; the elegant high collar and short sleeves present a neat finish. Cool stretch fabric feels soft and