1-800-383-4940 

The HTX (Heat Transfer Exchange) utilizes the best of Simpson's innovative Heat Transfer Technology developed at the track with the Heatshield Speedway. The Heat Transfer Exchange System is engineered right into the fit, features, and performance of the HTX. The HTX is the driving shoe for racers who wear the High Top and want the added benefit of Heat Shield Technology.

• High-top design with satin suede struck-through leather upper
• Aluminized Kevlar Heat Shield on the lateral, medial, and heel areas
• Suede leather shield cover with breather hole scheme
• Simpson's super sensitive, Superflex last design.
• 2 lace holes in toe box area with 3-station Speedlace System (Aluminized Kevlar)
• Dual Speedfit closures and lace guard with embroidered logos
• Sloping achilles/heel design
• Adjustable wrap-around ankle support and super-soft padded tongue
• Heat Defeater Sole with Maxim Lite for positive, no slip, pedal control
• Fleece Nomex® lining with flat seams and athletic insert reinforcements
• Matching stitching and bias binding tape
• Meets SFI 5 and includes SFI tag