Nothing else comes close to Cool Shift. It not only acts as a thermal barrier from transmission heat, but also has an added safety feature; a fire barrier. Constructed of a very high-tech carbon Kevlar material, these shifter boots are built to last. It has an adjustable hook and loop top to adjust to thickness of shifter ensuring a tighter fit! Our deluxe shifter boot has a unique bellow design, allowing for greater flexibility and a less restricted throw than other shifter boots.