DEI Heat Shroud 1in I.D. x 3ft - Aluminized Sleeving - Hook and Loop EdgeHeat Shroud is made from a high temperature rated glass fiber fabric with an aluminized outer facing. Same as Heat Sheath but with the added convenience of hook & loop closure design along the open edges. Without the need of removing one end of connected wires, cables and hoses, simply wrap Heat Shroud around whatever needs protection and close edges.