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The RaceQuip SFI 3.3 underwear top is a black, SFI 3.3–certified flame-resistant base layer in 4XL. Intended for use beneath a race suit, it provides the SFI 3.3 coverage specified for motorsport apparel. Match with RaceQuip SFI 3.3 bottoms for full certified undergarment protection and to ensure a proper fit when worn under approved outer protective gear.
RaceQuip Black SFI 3.3 Fr Underwear Top - 4XL
