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SFI-5 Rated Multi-Layer Suits - Alpinestars Racing Suits
Alpinestars has premium Racing Suits are made from light weight Aramidic fabric. All their suits feature a close-fitting design and flat internal seams to reduct pressure point for a excellent comfort and fit.

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FREE $50 eGIFT CARD!
Description: SFI 3.2A/5 Certified (SFI-5) FREE $50 eGift Card! The Alpinestars Knoxville Suit is ergonomically profiled for a close-fitting performance fit with a boot cut leg construction. As well as...More Details »
Item #: ALP3355916
Condition: New
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Price: $399.95
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FREE $100 eGIFT CARD!
Description: SFI 3.3A/5 Certified (SFI-5) - FIA Homologated 8856-2000 FREE $100 eGift Card! Incorporating a new assembly construction for improved levels of breathability and comfort, the anatomically...More Details »
Item #: ALP3352116
Condition: New
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Price: $999.95
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FREE $100 eGIFT CARD!
Description: SFI 3.2A/5 Certified (SFI-5) - FIA Homologated 8856-2000 Approved FREE $80 eGift Card! Designed and developed for an optimized women’s performance fit the Stella GP Pro Suit offers excellent...More Details »
Item #: ALP3360116-1064
Condition: New
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Description: SFI 3.2A/5 Certified (SFI-5) - FIA Homologated 8856-2000 Approved Certified to FIA and SFI homologation standards, the Alpinestars GP Race Suit features a fully floating arm construction and...More Details »
Item #: ALP3355114
Condition: New
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Price: $799.95
Sale: $649.88
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Description: SFI 3.2A/5 (SFI-5) Certified - FIA Homologated 8856-2000 Approved A comfortable, close-fitting performance racing suit which incorporates excellent safety features and technically innovative...More Details »
Item #: ALP3355614
Condition: New
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Price: $599.95
Sale: $499.87
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NEW!
Description: Alpinestars SP is a performance suit designed for all forms of auto racing. The flat seam construction and pre‐curved sleeves and legs combine to offer exceptional comfort and fit when in the cockpit.
Item #: ALP-3355112-12-62
Condition: New
Limited Supply: Only 1 Left!
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Price: $599.95
Sale: $299.88
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FREE $175 eGIFT CARD!
Description: SFI 3.2A/5 Certified (SFI-5) - FIA Homologated 8856-2000 Approved FREE $175 eGift Card! A premium auto racing suit, the Alpinestars GP Tech auto racing suit features a technical multi-layer...More Details »
Item #: ALP3354116
Condition: New
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Price: $1,749.95
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FREE $200 eGIFT CARD!
Description: FIA 8856-2000 Homologation Standard. This suit is not SFI Rated FREE $200 eGift Card! With every detail on this auto racing suit designed to reduce weight and minimize driver fatigue, the...More Details »
Item #: ALP3350015
Condition: New
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Price: $1,999.95
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Items 1-8 of 8

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More About Alpinestars Racing Suits

Alpinestars has premium Racing Suits are made from light weight Aramidic fabric. All their suits feature a close-fitting design and flat internal seams to reduct pressure point for a excellent comfort and fit.

When shopping for a new race suit you want to compare the differences so that you are able to find the best suit that fits your budget. If you are looking to keep your suit cost down your most affordable option is single layer suits which carry an SFI-1 rating. Such as the Velocity 1 Race Suit. We recommend it to drivers looking for an affordable suit since it has an outstanding TPP rating of 10.2. Although what many people dont realize with new materials like Proban / Pyrovatex you can get yourself into a SFI-5 Multi-layer suit with out destroying your racing budget. The Crow Quilted Two Layer Proban Driving Suit is a very popular choice for any driver looking for an entry level suit. Even in the lower priced SFI-5 suits you can still find a suit that has a custom look to it such as the Velocity 5 Multi-Layer Race Suit with its Euro styling it will get you noticed by everyone. If you wanted a suit made with lightweight material such as Nomex or Aramidic fabric the Alpinestars GP Start Suit is a good place to start. Now if you want suit with features like arm gussets and a stretch panel in the back take a look at the Alpinestars GP Race Suit or the Simpson Crossover Racing Suit. They are2 of our top of the line SFI-5 suits with the GP Race being a ultra-light 3-layer suit offering superior protection with out the feeling of a bulky suit. Now dont forget that the best way to keep that new suit clean is with Molecule Wash which is specifically designed for caring for technical fabrics.

There are basically two types of auto racing suits: Single Layer Suits and Multi-Layer Suits. In addition, you have one or two piece auto racing suits. We recommend that drivers wear one-piece suits, and crewmen can choose from from either type depending upon their responsibities.

While racing suits are most commonly identified by their SFI or FIA ratings, the TPP rating is the best measure of a particular racing suits protection level.  TPP ratings are an indication of how long a suit will protect you before you would incur a second degree burn. The TPP rating is divided in half to determine the number of seconds until the human tissue reaches a second-degree burn. For example, if a particular fabric has a TPP rating of 35, it takes 17.5 seconds until a second-degree burn occurs in a flashover situation.

The TPP rating is calculated from a mathematical formula that relates the heat transferred through the garment material to the amount of energy that would be required to cause a second degree burn. TPP results are typically reported as a rating. The TPP rating is the time to incur a second degree burn multiplied by the heat exposure level that the material is exposed. The higher the garment TPP rating, the more time that is required before a second degree burn will occur. The chart below outlines the SFI ratings based on TPP results (shown to the right of the slash mark on the driver suit patch) with the corresponding times to a second degree burn:

SFI Rating

SFI Name

TPP Rating

Time to 2nd Degree Burn

Comments

SFI 3.2A/1

SFI-1

TPP 6

3 Seconds

Common Single Layer Suit

SFI 3.2A/5

SFI-5

TPP 20

10 Seconds

Common Multi-Layer Suit

SFI 3.2A/15

SFI-15

TPP 38

19 Seconds

Used for Drag Racing Applications

SFI 3.2A/20

SFI-20

TPP 80

40 Seconds

Used for Top Fuel Drag Racing

 

TPP rating can vary within an SFI Rating, for example SFI 3.2A/5 rated suits (commonly called SFI-5) are available with TPP ratings anywhere from 19 to 26 depending on the number of layers and the fire-retardant material used to construct the suit. The only way to increase a TPP rating is through adding multiple layers. However, as you increase layers, suits get bulkier, and bulk does not equal comfort. Your goal in selecting a firesuit should be the balance of comfort with maximum protection. The majority of racers in the US are currently using a 2 or 3-layer SFI-5 rated suit.

The easiest and best way to to increase TPP is to wear Fire Retardant Underwear under you firesuit.  These garments are typically made of Nomex, CarbonX, or other FR such as Kermel and Lenzing Materials.  It is highly recommended that any driver wear fire-retardant underwear to improve TPP and better protect against injury.