There have been various designs of no bit bridle (hackamore, bosal, and sidepull) in use for many years, but the crossover / cross-under / crosspull / whole-head-hug design (a defining feature of The ...
Competitors at lower levels – specifically categories C, D, and E – may use a bitless bridle or soft hackamore, provided that the side pieces or bars do not exceed 16cm. At higher levels ...