Single-layer SFI-1 rated fire resistant one-piece racing suit ensures your safety during a race, Suit is made from FRC (fire retardant cotton) with an SFI rating of 3.2A/1, Available in sizes S-4X to fit a variety of different body types, Features elastic wrist cuffs, boot cut pants with stirrups, 180-degree arm gussets, front pockets, and hook and loop adjustable neck and waist straps, Comes in black or gray with contrasting stitching and features a unisex design
Finish Line Single-Layer SFI-1 One-Piece Racing Suit, Black Large Finish Line
Finish Line Single-Layer SFI-1 One-Piece Racing Suit, Black Large
Sku # 3452110-BLK-L
Mfr. Part # 2110-BLK-L
Condition
New
Brand
Finish Line
Sold
Each
Details
  • Constructed with a single layer of Fire Retardant Cotton (FRC) material
  • Dual reinforced shoulder epaulets with Finish Line “FL” logo
  • Hook and loop closure knit lined collar with Finish Line “FL” logo
  • Straight leg “boot cut” design with stirrups for enhanced protection
  • Elastic wrist cuffs are black, blending or contrasting depending upon suit color
  • 180-degree arm gusset for increased mobility and comfort with less fatigue
  • Features zippered closure with hook and loop waist and dual pockets
  • Available in black or gray with contrasting accents
  • Added lower back and crotch area stretch panels for comfort and mobility
  • SFI 1 with a SFI 3.2A/1 rating (with sewn in certification tag)
  • Thermal Protective Performance (TPP) rating of 6
  • Seven sizes available from Small to 4X

Affordable Safety for Every Type of Racer

Whether it is a sportsman level circle track car, a bracket class drag racer, or a good old fashioned demo derby ride, no matter what you strap yourself into on a Saturday night, you should be thinking about your safety. Your number one fans (your family!) love to watch you race, but they also want to see you make it through your race weekend. We can’t always control what happens on the racing surface, so your best bet is to be properly protected for those instances where you’re simply “along for the ride” and need to keep yourself protected from instances of fire. A quality racing suit is just what you need, and our single layer FRC-based one-piece fire suit is the perfect answer for sportsman level racing classes that do not require Nomex-based protective gear.

This SFI-1 one-piece driving suit offers peace of mind and when it comes to fire protection. The single-layer, SFI 3.2A/1 fire suits have a TPP (Thermal Protection Performance) rating of 6, promising up to three seconds of protection from second degree burns. While three seconds doesn’t sound like much time, with practice you should easily be able to release your harness and exit your race car within a period that the TPP rating will be sufficient. Learn more about SFI and TPP Ratings by reading our tech article, The Toolbox: What are SFI and TPP Ratings?. You can also pair this suit with our Shop Fire Resistant Underwear and Shop Fire Resistant Socks to increase your fire protection TPP values.

One-Piece Racing Suits Provide Superior Fire Protection 

The popular one-piece driving suit construction is preferred by many racers, as there is no opening for heat and flame to enter the suit like there is between separate fire suit jacket and pants setups. This one-piece suit design means that you are better protected with minimal points of entry for heat or flame to reach your body. The one-piece suit features dual reinforced shoulder epaulets that give safety crews a secure grab point in the event of extraction from the car, while the elastic wrist cuffs minimize heat and fire entry. The pant legs feature a boot cut with stirrups that provide more protection around the ankles while preventing the pant legs from riding up and exposing your skin.

Additional features of these Finish Line one-piece fire suits include 180-degree arm gussets for increased range of motion and driving comfort, with a knit-lined collar and lower back stretch panel along with a second stretch panel in the crotch area as well. Front pockets and a zippered closure with hook and loop flap round out the suit’s features. The racing suit is completely washable in standard home appliances using any one of our Shop Racing Suit Cleaners products. Though spot cleaning is often all your suit will need. Be sure to follow washing instructions carefully to prevent reduction in fire-retardant capabilities of the suit. Learn how to properly wash and care for your fire suit by reading our Racing Suit Cleaning and Care The Toolbox: Racing Suit Cleaning and Care Guide. 

A Fire Suit Suitable for Any Racing Venue

This single layer fire suit comes in black or gray with contrasting stitching and is available in seven sizes, ranging from Small to XXXX-Large (4X), which covers waist sizing from 32 to 46 inches and chest sizing from 38 to 50 inches. See our Standard Fire Suit Sizing Chart for complete sizing details and watch our The Toolbox: How To Measure For A Racing Suit video to ensure you accurately measure your body for your new one-piece racing suit. If you wish to order as separate jacket and pants in different sizes to fit your body type, Finish Line offers its single layer Shop Finish Line Single Layer Fire Suit Racing Jacket and Shop Finish Line Single Layer Fire Suit Racing Pants separately.

Specs
Suit Style
One-Piece
Suit SFI Rating
3.2A/1
Suit Material Type
Fire Retardant Cotton
Layers
1-Layer
Color
Black
Age Group
Adult
Gender
Unisex
Standard Suit Size
Large
Sold in Quantity
Each
TPP Rating
6
MFG. Part #
2110-BLK-L
Reviews

Fits like a Glove

Rated
Product Rating
by RacerJoe on September 15, 2025

Summary: I listened to the size guide that Speedway provided and the suit fits great.

Yes, I recommend this product.

Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.