It is highly reccommended that you add a layer of underwear to all suits (especially any single-layer suit) for any additional protection. The extra layer of flame retardant material is an item that no driver should ever have to use, but, if you need it, you will be glad you have it. The soft knit is hypoallergenic and more comfortable on the skin that the old standby. The double stitching provides added durability.

More From This Category

Simpson Head Sock, Black, Nomex, Dual Eyehole Openings, 1 Layer, SFI 3.3 Safety Rating, Each

Simpson Head Sock, Black, Nomex, Dual Eyehole Openings, 1 Layer, SFI 3.3 Safety Rating, Each

$144.91 $152.54

View
5% OFF
Simpson Nomex Underwear, Pants, Full Length, Nomex, Medium, White, Each

Simpson Nomex Underwear, Pants, Full Length, Nomex, Medium, White, Each

$181.17 $190.70

View
5% OFF
Simpson Racing Fire Retardant Underwear, Soft Knit Nomex, Long Sleeve Crew Neck Top, Medium

Simpson Racing Fire Retardant Underwear, Soft Knit Nomex, Long Sleeve Crew Neck Top, Medium

$181.17 $190.70

View
5% OFF
Simpson CarbonX Underwear Shirts 20600X Long Sleeve Top XLarge

Simpson CarbonX Underwear Shirts 20600X Long Sleeve Top XLarge

$181.17 $190.70

View
5% OFF
Simpson Nomex Underwear, T-Shirt, 2X-Large, White, Nomex, SFI 3.3, Each

Simpson Nomex Underwear, T-Shirt, 2X-Large, White, Nomex, SFI 3.3, Each

$209.32 $220.33

View
5% OFF