Tailored jackets, long boots and white gloves are clothes not normally associated with sport, yet they make up required competition dress within equestrianism. The modern equestrian sports of dressage and show jumping have their origins in the military and on the hunting field, and this highly formal, masculine style persists in contemporary equestrian circles.Perceived by many non-participants as archaic, comical and distinctly unsporty, equestrian competition dress requirements have remained relatively unchanged for a century and are one factor (amongst many others) that visibly marks equestrianism as different to most other sporting practices. This paper draws on an ethnographic study of equestrian sport in Britain in order to consider how participants today relate to and experience formal competition dress in the course of regular sporting activities. Formal competition dress is an important aspect of individual sporting identity for contemporary riders and is understood by participants to represent the unusual ethos of equestrian sport.