OMP Tecnica racing socks in flame retardant Nomex, homologated to FIA 8856-2018. Part number IAA-776.
How these compare to the One socks
We also stock the OMP One sock, which carries the same FIA 8856-2018 homologation, so both satisfy the regulations. The difference is where the effort has gone.
The Tecnica has reinforced heel and toe areas, which is a durability feature: those are the two places a sock wears through, and a racing sock that lasts two seasons instead of one is worth having. The One puts its emphasis on graduated pressure through the leg instead.
Neither is better. If you get through socks, take the Tecnica.
Why fireproof socks matter
Racewear regulations require no exposed skin between the layers, and the ankle is a common failure. An ordinary cotton sock under a race suit is a scrutineering problem and, more importantly, a synthetic one will melt.
The rest of it
Advanced stitch pattern to spread pressure points, and highly breathable, which in a fireproof sock takes some doing.
Tell us the series you are running and we will check the whole kit together.
Have you written anything about this exact product?
Yes, we have covered this exact product: The OMP Tecnica Evo Set: Suit, Tecnica Race Boots And Tecnica Race Gloves, and OMP Tecnica Evo 2026: Lighter Underwear, And A Size Chart That Changed. That is first-hand coverage from our own builds and showroom, not brochure copy.
Do I actually need FIA underwear?
If your championship requires it, this is the layer scrutineers ask about, and it is strongly recommended under any suit regardless. These socks are homologated to FIA 8856-2018, the current FIA standard, so the label is there when scrutineers ask for it. Our guide on whether fireproof underwear is mandatory covers the rules championship by championship.
What size should I go for?
Sizes run from S to L. Underwear layers should sit close to the skin without pinching, as loose fabric wrinkles under the suit and gets uncomfortable fast. Between sizes, take the smaller one for a base layer.
How do I wash it?
Underwear layers are the one bit of racewear you should wash after every use: cool and gentle, no bleach or fabric softener, air dry. That keeps the suit itself needing far fewer washes. Full routine in our racewear care guide.
At GSM Performance, our priority is to maintain the utmost hygiene and quality standards for the benefit of our customers. To that end, we have instituted a policy that all purchases of long johns, balaclavas, tops, and underwear are final and non-returnable. This policy is necessary due to the personal nature of these items, which are worn in close contact with the body. This protocol is intended to guarantee the health and safety of all our customers.
This policy adheres to the best industry practices and safeguards both our customers and our staff. It's important to clarify that this policy does not affect your statutory rights as a consumer. This policy does not apply if you receive damaged or defective products. In such cases, our customer service team is available to promptly address your concerns and arrange a replacement or refund. We greatly appreciate your understanding and adherence to our hygiene policy and thank you for your continued confidence in GSM Performance. For further information please see our terms and conditions which are agreed on checkout.
