As with all racing safety equipment, racing suit fitment is critically important, and the racing suit user can increase the risk of injury if they are not fitted properly. Please refer to the general racing suit sizing chart below for proper racing suit fitment.  This chart is for ADULT racing suit sizing only.  YOUTH, JUNIOR and CHILDREN sizes are not included on this sizing chart.  If you need a suit size outside of this chart range, please contact our Technical Sales staff for size availability within the Simpson® Safety product offerings.

Want Racecar Engineering™ To Help Pay For Your Racing Suit?  Well, why not come and join our exclusive 'Checkered Flag Victory Club'!  It's really simple, so here's the deal.  Purchase any one of our exclusive Racecar Engineering™ embroidered Simpson® Safety Model MTO21 2-Layer Racing Suits (SFI® Certified SFI3-2A/5) and we'll pay you each time you park it in the victory lane. Just buy your suit and we'll credit your RCE™ account as follows for the first year:  

Win a 25 Lap Show & Get $25 - Win a 50+ Lap Show & Get $50.  Credits will be applied to your RCE™ account - Limited to 10 cumulative wins from either type of event. $500 credit maximum during the year.

So why not take a look at our RCE suits and see what color combination suits your style.  To view our full selection of RCE™ embroidered Simpson® Safety racing suits - Click Here.

We Hope You Join Our 'Checkered Flag Victory Club™' Soon!

Properly Measuring Fitment For Simpson® Safety Standard Racing Suits

Locate a cloth tape measure and record the following body measurements:

  • A - Height - Stand against a wall, ask someone else to measure from the floor to the top of the head, keeping the tape vertical.

  • B - Weight - Using a scale, record the weight of the person being fitted for a driving suit.

  • C - Neck - Measure around the fullest part of the neck line, keeping the tape semi-taunt.

  • D - Chest - Measure around the fullest part, under the armpits, keeping the tape horizontal.

  • E - Waist - Measure around the natural waist line, in-line with the navel, keeping the tape horizontal.

  • F - Hips - Measure the circumference around the fullest part of the hips, about 6-7 inches below the waist line, keeping the tape horizontal.

  • G - Inseam - Stand against a wall, ask someone else to measure from the crotch to the bottom of the leg.

Once measurements are completed, please refer to the sizing chart below to find the Simpson® Safety racing suit size that best fits your measurements.  If you DO NOT find a suit size that works well, you may have to consider having a custom racing suit made by the factory.  If this is the case, please refer to the CUSTOM RACING SUIT section listed below. 

Remember, a properly fitted racing suit is important for both maximum safety and overall driver comfort.

Simpson® Safety- Standard Adult Suit Sizing and Fitment Chart***
 Factory Suit Size
 A - Height (ft./in.)
5'-5" to 5'-7"
5'-7" to 5'-10"
5'-10" to 6'-2"
5'-11" +
5'-11" +
 B Weight (lbs)
115 to 130
140 to 165
175 to 200
210 to 225
225 to 250
 C Neck (in.)
 D Chest (in.)
30" to 34"
34" to 38"
38" to 42"
42" to 46"
46" to 50"
 E - Waist (in.)
26" to 30"
30" to 34"
34" to 38"
38" to 42"
42" to 46"
 F - Hips (in.)
33" to 37"
37" to 41"
41" to 45"
45" to 49"
49" to 53"
 G - Inseam (in.)

Racing Suit Sizing Chart Note: Youth and Junior sizes for Simpson® Safety Racing Suits are also available. Please contact our Technical Sales staff for sizing, availability and pricing.

Simpson® Safety Custom Racing Suits

Simpson® Safety makes custom racing suits really fast and produces them by the thousands each year. Custom 'Made-To-Order' (MTO) racing suits are designed to your specifications and require 14 different measurements to ensure a custom fit.  If you require a custom-tailored racing suit made to your specifications, get a head-start now by downloading the Simpson® Safety Custom Racing Suit Order Form by clicking the button at the right. After you have taken your measurements, please contact our Technical Sales staff for a price quote and estimated delivery date.

Racecar Engineering™ Has All of Your Racing Safety Gear Needs Covered

Please remember that Racecar Engineering™ carries a full assortment of Simpson® Safety racing suits. On top of that, we also have in stock and ready to ship, driving gloves and shoes, underwear, hoods, socks, helmets, helmet supports, harness pads, restraints, helmet skirts, gear storage bags and much more.

Browse our wide selection of safety products and buy online today.  If you have questions about choosing the right safety equipment for your motorsports segment, please contact one of our Technical Sales Associates for assistance.

At Racecar Engineering™ we make every attempt to be every racer's 'One-Stop Safety Shop'.

Return To:  Main Technical Center Page  |  Racing Suit Info/Sizing Chart Page - All Brands

Related Tech Safety Topics:  Racing Helmets | Driving Gloves | Driving Shoes | Head and Neck Restraints | Racing Seats

*** RACING SUIT SIZING/FITMENT CHART DISCLAIMER: This racing suit sizing/fitment chart has been created by Racecar Engineering™ for our customer's reference and ease-of-use using the latest fitment information available from the factory.  Please always refer to the factory website, factory printed materials and factory personnel advice for the latest racing suit information about their brand of safety product.  The Simpson® Safety factory website can be accessed directly at (link opens new page) - Racecar Engineering™ is not responsible for any typographical errors contained in this racing suit sizing chart/fitment material or the end-user's failure to verify & follow factory fitment specifications.