Stormchaser Triumph TR4 TR4A TR250 Car Cover Waterproof Fabric. Three outer layers of quilted polypropylene bonded fabric protects from extreme weather. Micro porous fiber allows cover to breath plus inner cotton lining. Color medium gray. Protect your Triumph TR4 TR4A TR250 TR5 from outdoor elements. Use indoor or outdoor. Note waterproof covers should never be used on newly painted vehicles. These cover provide waterproof membrane extended use without periodical removal is not recommended.