Eliminate unnecessary water intrusion inside the door by replacing these cracked or weathered 1997-2004 Corvette Lower Outer Side Window Seals. Often called "whiskers" or "felts" these lower window seals are often an eyesore on an otherwise flawless Corvette body due to the punishing exposure to UV rays. Made from EPDN Dense (Ethylene Propylene Diene Monomer) extrusions. These extrusions from EPDM are typically a solid rubber with high and offer outstanding resistance to heat, ozone, steam and weather.