The Simpson Shifter Boot Cover installs over the existing shifter boot to add fire protection and increased thermal insulation to the cockpit area. Revised design with reverse stitching minimizes the chance of fire penetration. Constructed with CarbonX and Kevlar® for the ultimate in fire protection. Measures approximately 6 1/2" x 7 1/2" at the base and 6 1/2" high. SFI 48.1 approved.