Acavallo Gel Rear Riser in Black. The Acavallo Gel Black Riser can be helpful if a saddle needs raising at the back. The Acavallo Gel Riser has been specially designed with minimal depth over the centre so as not to cause unnecessary pressure and can be used in conjunction with other Acavallo gel pads or can be used on the top of a numnah or saddle pad. The Acavallo Gel Riser offers a unique honeycomb pattern to ensure the main weight bearing areas are compensated and that the riders weight is evenly distributed and any shock is absorbed. Read more… Machine washable.