Alpinestars Fire Resistant Underwear Top, Race Series F1, SFI 3.3 Certified
White, Is SFI Rated, 3.3 SFI Rating, Adult Age Group, Unisex Gender
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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.
- Choose Black or White in sizes S-XXL
Learn more about SFI and TPP Ratings by reading our tech article. What are SFI and TPP Ratings?
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