Equiline RUBEN - SOUNDPROOF TIE DOWN EAR BONNETSoundproof tie down ear bonnet that allows the horse to remain concentrated while avoiding any distraction from environmental noises. The soundproof system SLE comprises of 3 layers: allergy free cotton with a special antibacterial treatment make up the lower and upper layer, while technical soundproof material make up the middle layer. The technology behind the RUBEN results in a more comfortable and concentrated horse for high level performance.