Inner liner coated with Tourmaline - a powered down form of the naturally occurring crystal that releases an electric charge to release negative ions.Negative ions cause a change in the water in the horse\'s body which causes increased blood flow to important areas like muscles, allowing for increased levels of oxygen in the bloodIonic technology benefit: encourages increased circulation, stimulates metabolism, increases oxygen delivery to cells and tissue, helps to strengthen the immune system, restores the PH balance of the body, reduces blood pressure and removes toxins from the body.Neoprene outerVelcro fastenings - for easy taking on and off Can be used in the stable and whilst travelling