Field Relief Fly RugField Relief Fly Rug Made with your horses comfort in mind, the Field Relief Fly Rug will keep your horse protected from the flies while remaining cool and able to move freely in the field. With a unique hexagonal pattern tested to reduce fly landings by 51% on average when compared to other fly rugs*. Featuring: Anti rub lining. Wither pressure relief panel. Shoulder relief shaping 90% UVB protection. Elasticated surcingles with belly flap. Extra