Blanket has adjustable straps and steel buckles to make the fit around the transmission nice and snug in the event of a transmission failure the racer will be protected. Blanket is SFI 4.1 certified and has durable sewn on nylon straps to allow the transmission to be installed or removed from the race car.
The difference between nylon and Kevlar is weight which generally Kevlar is four pounds lighter and due to the strength of the Kevlar the blanket is a little thinner and easier to work with around the transmission but the nylon works well in a sportsman type application.
Racer can choose between nylon or Kevlar from drop down menu.