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Alpinestars Fire Resistant Underwear Bottom, Race Series, SFI 3.3 Certified
Alpinestars Fire Resistant Underwear Bottom, Race Series, SFI 3.3 Certified

Alpinestars Fire Resistant Underwear Bottom, Race Series, SFI 3.3 Certified

White, Is SFI Rated, 3.3 SFI Rating, Adult Age Group, Unisex Gender

3 Reviews | 1 Answered Question
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Alpinestars Fire Resistant Underwear Bottom, Race Series, SFI 3.3 Certified
Alpinestars Fire Resistant Underwear Bottom, Race Series, SFI 3.3 Certified
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Part # 1244713
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

MFG. Part #:
4754713
Color:
White
SFI Rated:
Yes
SFI Rating:
3.3
Sold in Quantity:
Each
Age Group:
Adult
Gender:
Unisex

Info

Lightweight and offering high breathability and flame-resistance properties, the Race Series F1 specification underwear incorporates a relaxed fit for comfort when wearing a driving suit.

Certified to FIA 8856-2000 and SFI 3.3 homologation standards

  • F1 specification underwear, constructed using an innovative flame resistant technology developed by Alpinestars. Lenzing FR® is a special natural viscose fiber with unique thermal insulation and permanent flame resistance properties that help prevent heat stress and heat stroke.
  • Lightweight, special material structure offers high breathability performance.
  • Relaxed fit offers increased comfort.
  • Extended collar for greater performance.
  • Special material formulation is more breathable and has better elastic properties than conventional fabrics.

Learn more about SFI and TPP Ratings by reading our tech article. What are SFI and TPP Ratings?

Some parts are not legal for use in California or other states with similar laws/regulations

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  • Fire suits are constructed from a variety of fire resistant materials. We can teach you the difference between the most common suits like Nomex and fire resistant cotton such as Proban.
  • It's important to have a pair of gloves that fit properly, especially during an important race. Follow our guide to ensure you get the right size racing glove the first time!
  • Sprint car driver, McKenna Haase, learns her lesson the hard way and explains why she is so passionate about her helmet. She believes it is the most important piece of safety gear in racing, find out why!

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