Nigel Mansell - Race-Used Sparco Fireproof Undershirt - Williams F1 Era - Signed *FULL DESCRIPTION:* Authentic race-used Sparco fireproof undershirt worn by 1992 F1 World Champion Nigel Mansell during his Williams F1 era. *HISTORY & SPECIFICATIONS:* - *Driver*: Nigel Mansell - 1992 Formula 1 World Champion with Williams-Renault - *Team Era*: Williams F1 Team - iconic Mansell "Red 5" championship years 1991-1992 - *Model*: Sparco FIA 1986 homologated Nomex fireproof undershirt - *Brand*: Sparco - official supplier to Williams F1 Team - *Condition*: Race-used with authentic cockpit wear marks consistent with F1 use - *Signature*: Original Nigel Mansell autograph present *AUTHENTICITY & PROVENANCE:* 1. *Race-used*: Authentic wear patterns from F1 cockpit use. Sparco undershirts were mandatory fireproof base layer under racing suits 2. *Williams Era*: Mansell’s most successful F1 period. 1992 season = 9 wins, 14 poles, dominated championship 3. *Sparco*: Official Williams team supplier during Mansell’s championship years 4. *Iconic Driver*: "Our Nige" - one of the most popular and collectible F1 drivers ever *COLLECTOR VALUE:* Race-used fireproof underwear from F1 World Champions is extremely rare. Mansell Williams era items are highly sought after by F1 collectors worldwide. The combination of race-use + Williams championship era + signature makes this a museum-grade piece. Perfect display item for F1, Williams, Nigel Mansell and 1990s F1 collectors. Investment-grade motorsport memorabilia. Insured worldwide shipping with professional packaging for textiles.