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The RaceQuip SFI 3.3 underwear bottoms are black, SFI 3.3–certified flame-resistant undergarments in XL. Intended to be worn beneath a race suit, they provide SFI 3.3 protection for motorsport applications. Pair with the matching SFI 3.3 top for full certified undergarment coverage and to ensure proper fit under approved outer protective garments.
RaceQuip Black SFI 3.3 Fr Underwear BTM - XL
