Fire-Resistant Racing Shoes and Socks: What the Rating Covers

Shoes and socks are the last layer of fire protection. Your feet sit right behind the firewall, and in a front-engine car that's the closest you get to the engine bay. This article covers what the ratings mean, how to close the gap at the ankle, and how to keep pedal feel without giving up protection. It finishes with a check of the whole layered kit.

What the Ratings Cover

• FIA 8856-2018 requires racing shoes to hold back heat for at least 11 seconds in testing, the same as the back of a glove. Under the old 8856-2000 standard, shoes only had to meet a material density requirement, with no heat test.
• SFI 3.3 covers shoes in North America, along with gloves, underwear and socks. Some shoes carry both, such as the OMP One-S and Alpinestars Supertech.
• Club rules vary. SCCA asks for shoes with uppers of leather or non-flammable material that cover at least the instep, and it allows the small ventilation holes manufacturers put in.

Why Not Regular Trainers

Everyday trainers are mostly synthetic mesh and foam, which aren't fire-resistant. Their thick, cushioned soles also take away the pedal feel you need for threshold braking and heel-toe downshifts. A racing shoe fixes both: a fire-resistant upper, and a thin sole with a rounded heel so your foot can pivot between the pedals.

Socks: Part of the Same Layer

Fire-resistant socks are required by SCCA for every driver, and under FIA 8856-2018 they have to meet the same 5-second heat-transfer minimum as underwear. Two practical points:

• Length. The sock has to stay under the leg of the suit when you're seated, and suit legs ride up in the driving position. Knee-length socks are the safe choice.
• Material. Leave ordinary cotton and synthetic athletic socks at home. They aren't fire-resistant, and synthetics can melt.

The Gap at the Ankle

The ankle is the lower-body version of the wrist. It's where the suit, sock and shoe all meet, and it opens up when you sit and bend your knees.

• Check it seated. Sit in the car with your feet on the pedals. Nothing between the shoe and the suit leg should be bare skin.
• Know your suit's leg style. Boot-cut legs drop over the top of the shoe. Cuffed legs close around the ankle, over the sock.
• Consider a higher shoe. Mid-top and high-top shoes, like the OMP First v2 and Sparco Top, cover more of the ankle than a low-cut shoe.

Fit and Pedal Feel

• Size them with your racing socks on. A shoe that fits over a thin everyday sock can be tight over a fire-resistant one.
• Look for a narrow profile. A slim shoe fits between the pedals without catching the next one, and narrow lasts are a feature of most racing shoes.
• Thin sole, rounded heel. The thinner the sole, the more you feel through the pedal. The OMP One-S, for example, uses an internal plate sole for feedback.

Care and Service Life

• Save the soles for the car. Thin racing soles wear quickly on asphalt and concrete, so change into them at the car if you can.
• Wipe off fuel and oil. Some shoes, like the OMP First v2, have fuel-resistant soles, but the upper still shouldn't carry anything flammable.
• Check the date. FIA 8856-2018 shoes are good for 10 years from the date of manufacture.

Our Picks

OMP First v2: mid-top, single strap

The First v2 is soft, durable suede with a mid-top boot and one large velcro strap. Its fuel-resistant sole has a rounded heel for easy foot rotation. It's rated FIA 8856-2018.

Sparco Top: the high-top

The Top is a traditional high-top in suede, with leather inserts where it wears and a single velcro closure. An anatomic rear insert and a memory-foam insole make it comfortable, and Sparco's narrow profile keeps it clear of the next pedal. It's rated FIA 8856-2018.

Alpinestars SP+: for SFI rulebooks

The SP+ mixes leather and suede, with laces plus a hook-and-loop strap for a secure fit and perforated zones for airflow. It's rated SFI 3.3, which suits North American club rules.

OMP One-S: dual-rated, built for feel

OMP calls the One-S its top-tier FIA shoe. It's premium leather with a reinforced toe and heel. A velcro ankle strap holds the fit, and an internal plate sole sharpens feedback through the pedals. It's rated FIA 8856-2018 and SFI 3.3/5.

Alpinestars Supertech: the top of the range

The Supertech has a fully knitted upper that fits like a sock, a carbon heel cup, a 3D-printed midsole and an ultra-thin rubber outsole for maximum pedal feel. It's rated FIA 8856-2018 and SFI 3.3/5.

Putting the Layers Together

That's the full set. Before your next event, get dressed in all of it, sit in the car and check the four places where the layers meet:

If all four are covered, every layer is doing its job.

The Bottom Line

Buy FIA 8856-2018 or SFI 3.3 shoes, sized with fire-resistant socks long enough to stay under the suit. Choose a thin sole for feel and a higher cut if your suit leaves the ankle exposed.

For more on choosing a shoe, read Professional Racing Shoes: Pedal Feel vs Safety Standards.