Fire Retardant Underwear Pants

On Sale

RaceQuip SFI 3.3 Fire-Retardant Underwear Pants

RaceQuip SFI 3.3 fire-retardant underwear pants are knit from a blend of Aramid and FRC fabrics to achieve a safe, comfortable garment. They're hypoallergenic, so they won't irritate your skin like some other materials do. The proprietary fabric blend is also superior at wicking away moisture from the skin and will dry quickly. All RaceQuip fire-retardant underwear pants are machine washable and retain their shape well. They're available in a variety men's and youth sizes.

5.0 out of 5 stars ( 3 )

$89.99

$59.99

—

$88.99

Zamp Underwear Pants

Zamp Sports new line of fire-retardant underwear provides an additional layer of safety under your racing suit and earns an SFI 3.3 safety rating. The under pant bottoms are constructed from a single-layer of a fire-resistant acrylic/cotton blend material that is breathable to feel like a second skin, and features large cuffs to prevent sliding under your suit for a tailored fit without bunching for added comfort. These under garments are available in a range of different sizes, from extra-small up to 3X-Large. Order the size you need.

Not Yet Reviewed

$48.25

On Sale

Simpson CarbonX Ultimate Underwear Bottoms

Simpson CarbonX Ultimate underwear bottoms are made from double jersey interlock knit comprised of a patented blend of high performance fibers—and have extraordinary thermal protective properties. Nomex or CarbonX underwear, when worn beneath a racing suit, dramatically improves Thermal Protection Performance (TPP) in the case of an accident involving fire. SFI 3.3 approved, CarbonX Ultimate under garments are inherently flame-resistant, and will not burn, melt, or ignite when subjected to direct flame. Add an extra layer of racing protection with Simpson Racing's CarbonX Ultimate under garments. CarbonX Ultimate underwear bottom features: * SFI 3.3 approved, includes SFI tag * Designed to deliver the ultimate in base layer thermal protection * TPP rating of 13 cal/cm2 and zero seconds after flame * Lightweight, patented blend of high performance fibers * Double jersey interlock knit * Long or short sleeve crew neck top also available (sold separately)

5.0 out of 5 stars ( 4 )

$149.95

$74.95

—

$149.95

K1 RaceGear Precision Tech Layer Pants

K1 RaceGear Precision Tech Layer pants combine comfort and added protection at a price that won't break the bank, which makes them perfect for budget-minded racers. The Nomex long underwear bottoms have a durable, soft knit Meta-Aramid construction with moisture wicking properties for cool comfort--and they perform well under any driving suit. Key features of Precision Tech Layer pants: * Complies with SFI 3.33 specifications * Minimal flat-stitched seams with specialized flame-resistant thread * Available in a variety of men's sizes

Not Yet Reviewed

$87.00

—

$99.99

RJS Nomex® Underwear Pants

When you're behind the wheel of a race car, safety is just as important as getting down the track. Give yourself another layer of protection with RJS's Nomex® underwear pants.

3.29 out of 5 stars ( 7 )

$65.91

—

$112.69

Bell Racing Pro-TX Underwear Pants

Nomex clothing is absolutely crucial for those individuals who compete in auto racing. Bell Racing Pro-TX underwear pants are stitched using Nomex fire-retardant material, which both absorbs and wicks moisture away from the body and provides invaluable protection against heat and fire. SFI 3.3/5 rated, this undergarment is essential for providing the racer the last line of defense in a fire. The extra layer of flame-retardant material is an item that no driver should ever have to use, but, if they need it, they will be glad they have it. Order the undergarment in the color and size preference needed.

Not Yet Reviewed

$99.95

—

$99.99

Alpinestars Race V3 Bottoms

Alpinestars Race V3 bottoms are a high performance technical base layer engineered for serious drivers who demand advanced protection and all day comfort under their racing suit. Constructed from a premium blend of flame resistant fibers, including Lenzing FR, it delivers exceptional thermal insulation and heat stress protection while remaining lightweight, breathable, and soft against the skin. The stretchable, seamless tubular construction enhances mobility and eliminates pressure points, creating a natural, second skin fit that moves effortlessly with the body during intense driving conditions. Designed with a relaxed yet performance focused fit, it provides superior comfort for extended stints while maintaining durability and shape. Alpinestars Race V3 bottoms ensure dependable fire protection and professional level performance for competitive motorsport environments.

Not Yet Reviewed

$174.95

—

$174.99

Allstar Performance Fire-Retardant Underwear Pants

Allstar Performance fire-retardant underwear pants primary purpose is to provide an additional barrier of protection when worn underneath a racing suit, which is especially crucial in racing and other high-risk environments where fire safety is a paramount concern. The underwear bottoms are knit from a blend of lightweight Aramid and flame-retardant cotton material to achieve a durable, comfortable SFI 3.3 rated flame-retardant garment. They're available in sizes ranging: X-Small through 5X-Large. Key features and benefits: * Meets or exceeds the stringent SFI 3.3 safety standard for fire-resistant underwear, ensuring high-quality protection and compliance with racing regulations * Constructed with a blend of flame-retardant fabrics, including aramid and fire-retardant cotton (FRC), for a soft, comfortable feel that resembles regular clothing * Creates an additional thermal barrier—when worn underneath a racing suit can significantly reduce burn risk in the event of a fire * The fabric blend is also hypoallergenic, minimizing skin irritation * The proprietary fabric blend also efficiently draws away sweat and moisture from the skin, helping to keep the wearer cool and dry during intense activity and dries quickly, adding to overall comfort * The underwear bottoms feature an elastic waistband and cuff style leg bottoms to keep them in place * Machine washable, making them easy to care for and maintaining their protective properties throughout their lifespan * Durable construction helps the underwear pants retain their shape well, ensuring consistent performance over time

Not Yet Reviewed

$57.99

—

$69.99

Bell Racing Sport-TX Underwear Pants

Nomex clothing is absolutely crucial for those individuals who compete in auto racing. Bell's Sport-TX underwear pants are stitched using Nomex fire-retardant material, which both absorbs and wicks moisture away from the body and provides invaluable protection against heat and fire. SFI 3.3/5 rated, this undergarment is essential for providing the racer the last line of defense in a fire. The extra layer of flame-retardant material is an item that no driver should ever have to use, but, if they need it, they will be glad they have it. Order the undergarment in the color and size preference needed.

5.0 out of 5 stars ( 1 )

$79.95

—

$89.99

K1 RaceGear FLEX Underpants

K1 RaceGear FLEX underpants are constructed of the highest quality blend of Nomex and natural viscose fibers. This innovative material construction offers not only superior flame resistance and protection against heat transfer, but is the ultimate choice for soft, lightweight, comfortable underwear to be worn beneath a driving/race suit. Designed and tested specifically by top pros in Rally Cross, WEC and other endurance challenge series, the K1 FLEX Tech Layers are quickly becoming the top choice throughout all forms of competition motorsports. Key features: * 50 percent Nomex, 50 percent innovative viscose fibers for ultimate in weight savings, flame resistance and thermal insulation to combat heat stress and fatigue * Exceeds both SFI 3.3/5 and FIA 8856 homologation standards * Minimal flat stitched seams with specialized flame-resistant thread for added comfort * Special non-chemical dry treatment to promote cooling and combat odor * Highest level of elasticity and softness * Available in a range of sizes * Available colors: black or white

Not Yet Reviewed

$136.34

—

$145.00

RJS Racing Armor Underwear Pants

When you're behind the wheel of a race car, safety is just as important as getting down the track. Give yourself another layer of protection with RJS Racing Armor underwear pants. They're made with soft, fire-retardant cotton and are cover-stitched for superior fit, comfort, and mobility. The full-length undergarments are SFI 3.3 approved, and are available in a variety of men's sizes.

4.0 out of 5 stars ( 1 )

$119.07

—

$119.99

Clearance

Walero Racewear Flame-Retardant Base Layer Underwear Leggings

Walero flame-retardant base layer underwear leggings combine NASA-developed Outlast cooling technology, Envirotex antimicrobial treatment, and unsurpassed SFI and FIA thermal protection. The leggings are available in a variety of colors and men's sizes. For comfort and safety in every race, start with foundational gear from Walero. Features include: * Outlast cooling material * Envirotex antimicrobial treatment * Thermal Protection Performance (TPP) rating of 11.8 on SFI 3.3 testing * Flat-lock seams for superior fit and finish

Not Yet Reviewed

$179.00

$99.50