Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Tru-X-Factor Head Sock

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Tru-X-Factor Head Sock
Tru-X-Factor Head Sock

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Tru-X-Factor Head Sock

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What's in the Box

Our exclusive racing underwear is a 50% carbon fiber Nomex, woven together to offer you the ultimate in protection. These have TPP ratings of 14.5 which helps ensure your safety.

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