The OMP Tecnica long sleeve top, homologated to FIA 8856-2018. Part number IAA-774.
The Tecnica Evo is the newer version under IAA-774-9. Both carry the same homologation.
The high neck is a regulation, not a style
FIA racewear rules require no exposed skin between the layers. The neck and wrists are where scrutineers look, and a crew neck top under a race suit is a genuine reason to be sent away to change.
Long sleeves for the same reason: they have to meet the gloves.
What it does beyond the regulations
Fire retardant fabric knitted without seams, with breathable inserts over the areas that actually perspire. In a hot car the underwear is doing more work than people credit, moving moisture off the skin so the suit is not sitting wet against you.
Buying
Buy two. One in the bag and one in the wash is the difference between kit that stays usable and kit that does not, and racing underwear is worn against the skin every session.
It should be snug. Tell us your chest measurement and your suit size.
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 tops 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 XS-S to XXXL. 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.