The OMP Tecnica Evo long johns, homologated to FIA 8856-2018. Part number OMPIE0-0796.
The bottom half of the Tecnica Evo range, pairing with the long sleeve top.
Knitted without seams
Which matters more on the legs than most people expect. You are sat down for the whole session with your weight on the backs of your thighs, and a seam running across that area under a harness becomes something you cannot stop thinking about by the third stint.
The 3D cube inserts sit over the areas that actually perspire and are there to move heat rather than to look technical.
Why the bottom half is not optional
FIA racewear rules require no exposed skin between the layers, and the ankles are checked alongside the wrists and neck. A scrutineer who asks to see your underwear is asking about all of it, not just the top.
Nomex, so the flame resistance is in the fibre rather than a treatment, and it does not wash out over the garment’s life.
Fit
Racing underwear works by sitting close to the skin. It should feel snug rather than comfortable. Tell us your waist and inside leg.
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 garments 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 XXL. 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.
