Saddle seat is a uniquely American form of riding that grew out of a style of riding used on Southern plantations, with some European influences from "Park" or Sunday exhibition riding of high-stepping horses in public venues (often literally, city parks).
The informal dress for saddle seat equitation includes a coat and Kentucky jodhpurs of a dark, conservative color, e.g., herringbone, pin stripes, black, blue, grey, dark burgundy, dark green or beige; a white or pastel collared shirt with a tie; derby or soft hat; and jodhpur boots.