"ENVIRONMENTAL COVER AND HEAT SHIELD FOR AMMO CHUTE; COVER SHOULD FIT SNUGLY OVER AMMO CHUTE 19207-12373796; MATERIALS: CLOTH,COATED TYPE II, CLASS 3, FLAME RESISTANT, FLEXIBLE, EXTREMELY COLD TEMPS, MIL-C-20696; CLOTH,ALUMINIZED, GENTEX PART NO 1018; LEATHER, CLASS 1, MIL-L-40069"