Expert guides, safety insights, and racewear knowledge — built for drivers who take performance seriously.
The hidden number behind every SFI rating. TPP measures how long a fabric protects skin from second-degree burns — and two SFI 3.2A/5 suits can have wildly different TPP scores. Here's how to find the actual number.
Karting suits aren't smaller racing suits — they're built around abrasion, not fire. CIK Level 1 vs Level 2, junior and cadet fit, senior sponsor placement, when shifter drivers need the upgrade, and WKA/SKUSA/Rotax requirements.
What makes a sprint car racing suit different — arm-restraint compatibility, dust seal at the collar, methanol-specific multi-layer Nomex®, and abrasion-resistant panels. Plus sanctioning body requirements and Knoxville Nationals prep.
Le Mans is two weeks away. What makes pro endurance racing suits different — FIA 8856-2018, multi-driver fit, heat management at hour 14 — and what amateur endurance racers (Lemons, NASA, Thunderhill) actually need.
Which SFI rating do you need for drag racing? NHRA requires SFI 3.2A/1 for 10.00–11.99 ET and SFI 3.2A/5 for 9.99 and quicker. Full breakdown by class, elapsed time, and sanctioning body.
Ordering a custom race suit from the USA? The correct HS code for fire-resistant Nomex racing suits is 6210.40. Import duty rates, glove & shoe codes, and what to put on the commercial invoice — all covered.
Sprint car, dirt late model, drag, karting, road racing, powerboat — the exact SFI 3.2A rating you need for the car you actually race. A practical, discipline-by-discipline guide.
When is it time to move past your entry-level suit? Aftermarket auto racing suits explained — SFI ratings, Nomex® vs generic FR, custom vs off-the-rack, and the five signs your current suit is done.
Precision matters. Even small measuring mistakes can affect performance, comfort, and compliance. Here are five essential tips to get your custom suit right every time.
Not all racing suits are the same. The best option depends on your racing discipline, safety requirements, and performance needs. Here's your complete buyer's guide.
SFI 3.2A/1, 3.2A/5, 3.2A/15 demystified. What SFI ratings actually mean, what TPP measures, and which SFI suit rating you need for drag, sprint car, dirt, karting, and road racing.
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| Size | US | Chest | Waist | Hip |
|---|---|---|---|---|
| XS | 2 | 32 | 24 - 25 | 33 - 34 |
| S | 4 | 34 - 35 | 26 - 27 | 35 - 26 |
| M | 6 | 36 - 37 | 28 - 29 | 38 - 40 |
| L | 8 | 38 - 29 | 30 - 31 | 42 - 44 |
| XL | 10 | 40 - 41 | 32 - 33 | 45 - 47 |
| XXL | 12 | 42 - 43 | 34 - 35 | 48 - 50 |
