What is a "riding skirt"?

A riding skirt is a type of skirt that is designed for horseback riding. It is typically made from a durable material such as wool or cotton and may feature a split or pleated design to allow for greater mobility while riding. Riding skirts are often paired with a matching jacket or vest and may be worn with tall riding boots. They are commonly worn in equestrian sports such as show jumping, dressage, and polo, as well as for casual horseback riding. The length of a riding skirt may vary but is typically mid-calf or longer to provide coverage and protection while riding.