Auto Racing Fire Resistant Underwear Bottom with Free Shipping $99+

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SFI & FIA Underwear Bottoms - a flame resistant layer of protection between a racesuit and the racecar driver. Required by most racing rule books and worn by every driver who wants the ultimate in protection. Technical base layer bottoms in long and short legs come in a variety of colors and styles with features and prices to make sure every racer is ready to race again. DiscoveryParts offers the best in racing underwear from Alpinestars, G-Force, Oakley, OMP, Sparco and Traqgear. 

OMP One Base Layer Pant
Product available with different options
OMP's One Underwear is the Best OMP Offers, Period. OMP One Nomex Pant is FIA 8856-2000 certified.The OMP One Pant offers maximum breathability, flat seams, 3D knitted inserts, and is light weight.
On sale!-50%
Closeout Alpinestars ZX EVO Pants, SFI 3.3/FIA 8856-2000
Last items in stock
Alpinestars ZX Series EVO Layers are constructed with Lenzing FR®; an innovative natural viscose fiber that affords exceptional flame resistance and protection against heat transfer. This Formula 1 specification underwear is extremely lightweight and thin, while being incredibly soft to the touch, for greatly enhanced comfort when wearing a driving suit.
Sabelt UI-500 Pants Black
The composition of this new underwear line makes the clothing light, resistant and very comfortable. The use of Lenzing FR fiber, which is made of a natural raw material, and keeps the body dry and cool, together with the modacrylic and elasthane, which make the garments totally stretch, make this line the most convenient and the most Innovative across the range. 
Sabelt UI-500 Pants White
The composition of this new underwear line makes the clothing light, resistant and very comfortable. The use of Lenzing FR fiber, which is made of a natural raw material, and keeps the body dry and cool, together with the modacrylic and elasthane, which make the garments totally stretch, make this line the most convenient and the most Innovative across the range. 
Sabelt UI-100 Pants White
Last items in stock
The Sabelt UI-100 Nomex long pants feature the FIA 8856-2000 rating, and a high level of comfort with flat seams. The use of viscose fiber helps regulate body temperature on hot days, without compromising on fire protection. 
Sabelt UI-100 Pants Black
Last items in stock
The Sabelt UI-100 Nomex long pants feature the FIA 8856-2000 rating, and a high level of comfort with flat seams. The use of viscose fiber helps regulate body temperature on hot days, without compromising on fire protection. 
Alpinestars ZX EVO V2 FIA 8856-2018 Pants - Black / Gray
Last items in stock
Alpinestars ZX Series EVO V2 Layers are constructed with Lenzing FR®; an innovative natural viscose fiber that affords exceptional flame resistance and protection against heat transfer. This Formula 1 specification underwear is extremely lightweight and thin, while being incredibly soft to the touch, for greatly enhanced comfort when wearing a driving suit.
Alpinestars Race V3 Long Bottoms - Anthracite / Melange
Last items in stock
Alpinestars Race V3 Base Layers are constructed with Lenzing FR®; an innovative natural viscose fiber that affords exceptional flame resistance and protection against heat transfer. This Formula 1 specification underwear is extremely lightweight and thin, while being incredibly soft to the touch for greatly enhanced comfort when wearing a driving suit. Certified to both FIA 8856-2018 and SFI
Alpinestars Race V3 Long Bottoms - Gray
Alpinestars Race V3 Base Layers are constructed with Lenzing FR®; an innovative natural viscose fiber that affords exceptional flame resistance and protection against heat transfer. This Formula 1 specification underwear is extremely lightweight and thin, while being incredibly soft to the touch for greatly enhanced comfort when wearing a driving suit. Certified to both FIA 8856-2018 and SFI
Sabelt UI-600 Pants White
The new Sabelt UI-600 underwear is the best FIA-rated underwear from Sabelt. Certified to meet the incredibly strict FIA 8856-2018 rating, this underwear offers incredible protection while remaining supremely comfortable.
Sabelt UI-600 Pants Black
The new Sabelt UI-600 underwear is the best FIA-rated underwear from Sabelt. Certified to meet the incredibly strict FIA 8856-2018 rating, this underwear offers incredible protection while remaining supremely comfortable.
OMP OS40 Long Bottoms
OMP OS40 long bottoms are SFI 3.3 and FIA certified and priced for the weekend racer. OMP OS40 Long Bottom Sport Nomex®  underwear is breathable and comfortable for those long weekend days.
Alpinestars ZX EVO V2 FIA 8856-2018 Pants - White / Gray
Alpinestars ZX Series EVO V2 Layers are constructed with Lenzing FR®; an innovative natural viscose fiber that affords exceptional flame resistance and protection against heat transfer. This Formula 1 specification underwear is extremely lightweight and thin, while being incredibly soft to the touch, for greatly enhanced comfort when wearing a driving suit.