CHALLENGER SFI RACING SUIT PANTSAchieve certified safety at an unbeatable price with the K1 Challenger SFI Racing Suit Pants. These single layer pants meet stringent SFI 3. 2A 1 certification standards, offering superb protection for entry level racers, pit crews, mechanics, and race officials. Manufactured from the highest quality treated PROBAN FR Cotton, they are the logical choice for any racing series that does not require the use of more expensive Nomex or other inherently