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Sam B. Stagecoach, NV
“I just love this suit !! It fits me perfect, looks great, and was a great deal !!”

Sam B.
Stagecoach, NV

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SFI Foundation Ratings


SFI Foundation RatingsPROFOX is an active member in the SFI Foundation Program. We have been in good standing since our inception and receive all our Certifications and Certified Labels directly from SFI.

››See all PROFOX Racing Suits and Safety Gear

Your safety should be the number one reason you invest in a PROFOX driving gear. All of our suits meet or exceed SFI Foundation® minimum requirements.

The SFI Foundation® is a nonprofit organization established to issue standards for the performance and racing industry throughout the United States and the world. SFI tests a long list of products including gloves, driver suits, neck braces, restraint systems, shoes, underwear and window nets.

The SFI specification for driver uniforms, spec 3.2A, rates how long a driving suit will offer protection from a second degree burn in an approximation of a fully involved gasoline fire between 1800 and 2100 degrees.

SFI Foundation ratings are measured in calories per unit area per time of exposure. To figure a uniform's approximate protection time until second degree burns, divide the Thermal Protection Performance (TPP) number by 2.

Race carOver the years, racers have abbreviated a SFI 3.2A rated suit by only using the last number in the specification. For example, the 3.2A/5 is shortened to SFI-5.

It's always a good idea to check with your track and sanctioning body for their firesuit requirements.

Suits that do not include a genuine SFI® Certified patch may not provide adequate protection.

If you are ever involved in a fire or obtain holes in your suit, it's time to discard your suit and get a new one. Even the smallest singe is a weak spot in the material and can cause a problem if exposed to fire. Proper maintenance of a driver suit will help extend its useful life and provide you with years of protection. Check our FAQ for washing instructions.

Minimum times for each SFI 3.2A (Suits) level

SFI RATING Minimum TPP Value Time to 2nd Degree Burn
3.2A/1
6
3.0 Sec.
3.2A/3
14
7.0 Sec.
3.2A/5
19
9.5 Sec.
3.2A/10
38
19.0 Sec.
3.2A/15
60
30.0 Sec.
3.2A/20
80
40.0 Sec.
All PROFOX Racing suits are SFI Tested, Rated and Certified.
The PROFOX-1: Single Layer Suits are Certfied 3.2A/1 - TPP = 13
Single Layer 1 Piece    Single Layer 2 Piece
The PROFOX-5: Three Layer Suits are Certified 3.2A/5 - TPP = 27.1
3 Layer 1 Piece   3 Layer 2 Piece
The PROFOX-5nx (100% Nomex): Two Layer Suits are Certified 3.2A/5 - TPP = 22.7
2 Layer 1 Piece   2 Layer 2 Piece
The PROFOX-15nx (100% Nomex): Multi Layer Drag Suits are Certified 3.2A/15 - TPP = 68
Multi Layer 2 Piece
Here is a partial list of Sanctioning bodies using SFI products:

ADBA American Drag Bike Association U.S.
AHDRA All Harley Drag Racing Association U.S.
Alaska Sports Car Club U.S
ASA American Speed Association U.S.
ANDRA Australian National Drag Racing Association Australia
ATPA American Tractor Pulling Association U.S.
ARKM Australian Off Road Rally Karting Motorsports
CARS Canadian Association of Rallysport Canada
CSDBA Central States Drag Boat Association U.S.
DEKRA DEKRA Automobil AG Germany
DRL Drag Racing Ltd. England
FIA Federation Intenationale De L'Automobile France
FHRA Finnish Hot Rod Association Finland
Goodguys/VRA Vintage Racing Association U.S.
IDRA International Drag Racing Association U.S.
IHBA International Hot Boat Association U.S.
IHRA International Hot Rod Association U.S.
IMCA International Motor Contest Association U.S.
IPA Illiana Pullers Association U.S.
IRL Indy Racing League U.S.
ICSCC International Council of Sports Car Clubs U.S.
KDBA Kentucky Drag Boat Association U.S.
LODBRS Lucas Oil Drag Boat Racing Series U.S.
MCSCC Midwest Council of Sports Car Clubs U.S.
MSNZ Motorsport New Zealand New Zealand
MTRA Monster Truck Racing Association U.S.
NADM National Association of Diesel Motorsports U.S.
NHRA National Hot Rod Association U.S.
NHRDA National Hot Rod Diesel Association U.S.
NJBA National Jet Boat Association U.S.
NORRS National Off Road Racing Series U.S.
NSCA National Street Car Association U.S.
NTPA National Tractor Pullers Association U.S.
NZDRA New Zealand Drag Racing Association N.Z.
ORCI Oval Racing Council International England, Scotland, Ireland, and Europe
OSM Outlaw Street Madness U.S.
PCA Porsche Club of America U.S.
PSCA Pacific Street Car Association U.S.
Pull-N-Power U.S.
SBF Svenska Bilsportforbundet Sweden
SCCA Sports Car Club of America U.S.
SCTA Southern California Timing Association U.S.
SDBA Southern Drag Boat Association U.S.
Svensk Swedish Drag Racing Association Sweden
SLDBA St. Louis Drag Boat Association U.S.
UHRA Unlimited Hydroplane Racing Association U.S.
USAC United States Auto Club U.S.
USSA United States Speed Association U.S.
VCS Victorian Speedway Council Australia
VMC Vintage Motorsports Council U.S.
SFI Racing / SFI Race
Australia Racing Suits Australia