Special UV treated mesh fabric blocks the heat while allowing the cool breeze to flow through. The special weave of the Rugged Ridge mesh brief/Island Topper is designed for strength and durability while providing open air protection from the suns heat. Available in two great styles: the Summer Brief that goes to the center hoop and the Island Topper that goes back to cover those rear seat passengers. Don't forget the Header/Windshield channel needed to install these tops!