Topic: With SFI 3.2A/5 suits do you go commando, Nomex, or other.

My team has SFI 3.2A/5 two-layer Nomex driving suits. Cannot decide about what to wear, or not wear, underneath.

What do you do?  Full Nomex Underwear, partial Nomex Underwear, go commando, or other?

Thanks

2 (edited by DefectiveLemon 2021-05-03 08:05 AM)

Re: With SFI 3.2A/5 suits do you go commando, Nomex, or other.

Whatever you wear under your suit, just make sure it's not synthetic.
Wool, 100% cotton, and modal are fine, but if you are engulfed in fire for more than a few seconds, the synthetic fibers will melt into your skin and make the treatment and healing process much more complicated.  (SFI 3.2A/5 is designed to offer thermal protection so that after 20 seconds you'll only have second degree burns.)

FYI: Simpson sells CarbonX boxers ($100 for two pairs) if you want a safer alternative to a satin leopard-print bikini.

Re: With SFI 3.2A/5 suits do you go commando, Nomex, or other.

CarbonX (and variants) is the poop.  It's more comfortable than my everyday clothes.

1990 RX7 "Mazdarita"  1964 Sunbeam Imp (IOE 2013 Sears Pointless) 2002 Jaguar x-type (Winner C-Class 2021 Sears Pointless)
Gone bye-bye
1994 Jaguar XJ12 (Winner C-Class 2013 Sears Pointless)  1980 Rover SD1 (I Got Screwed 2014 Return of Lemonites)

Re: With SFI 3.2A/5 suits do you go commando, Nomex, or other.

In the summer (in CA.) it's 100% cotton shorts and a CoolShirt.
Winter means Nomex (long johns and shirt)

40+x Loser.....You'd think I would learn......
5x I.O.E  Winner   1 Heroic Fix Winner   1 Org Choice Winner
2x  I Got Screwed Winner    2x Class C Winner
(Still a Class B driver in a Class A car)

Re: With SFI 3.2A/5 suits do you go commando, Nomex, or other.

I have an FIA 2013 suit.

If its a cold day I wear my full Nomex underwear

Moderate day I'll wear just the Nomex pants and a cotton T shirt

Hot day its Cotton briefs and a cool vest.

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Chevy Camaro (Tiger striped #38)  (1989-2017 RIP old friend)
Chevy Corvette 1984......and still racing!