Hunter jumpers are more on the forehand than dressage horses. Horses move in a smoother style with less knee and hock movement or “action.” The weight of the shoes is important because a heavy shoe will cause more action.
Most equitation horses use aluminum shoes on the front and light steel behind. Properly applied break-over (shoe set back off the toe) of the front and hind can enhance the movement.
Lower-level jumpers often have some sort of permanent low level traction applied to the shoes and higher jumpers often have “drilled and tapped” holes which the rider can use to add, remove, or change traction as needed.