⟲ 360° — drag meThe facts.
| Manufacturer | IXON |
|---|---|
| Model | Underground |
| Product type | Seamless undersuit / racing base layer |
| Gender | Men's |
| Intended use | Road, trackday, circuit |
| Material | Nylon + Elastan |
| Fit | Fit — close-to-skin cut |
| Construction | Seamless |
| Comfort details | Flat-Lock stitching for optimised wearing comfort |
| Compression zones | Wrists, ribs, back and ankle bands |
DescriptionThe whole story▼
Engineered to disappear beneath your race suit, the IXON Underground Seamless undersuit sets a high bar for men's motorcycle base layers. Its seamless construction and Nylon-Elastan material blend eliminate the friction points that distract from your riding, making it equally at home on a circuit grid, a trackday briefing, or a long sport-riding day in full leathers.
Key Features
- Seamless construction removes pressure points and seam chafe — the primary cause of discomfort under a close-cut race suit
- Nylon and Elastan blend delivers four-way stretch that moves with every lean, tuck, and brake input without bunching
- Flat-Lock stitching throughout keeps the skin contact surface smooth and irritation-free even over extended sessions
- Targeted compression zones at the wrists, ribs, back, and ankle bands maintain an anchored, close-to-skin fit that stays in place under leathers
- Slim Fit cut adds no bulk between your body and your protective suit, preserving the intended fit of your outer gear
- Versatile across road, trackday, and circuit use — a single undersuit that transitions effortlessly between environments
Seamless Technology — Why It Matters Under Leathers
Conventional underwear is built for everyday comfort, not for sustained hours in a tucked riding position inside a tight one-piece. Seams that feel negligible standing still become genuine irritants at speed: they bunch, they rub, and they pull focus away from the road. The IXON Underground addresses this directly with a fully seamless knit structure that contours to the body rather than pressing against it. The result is a base layer that riders stop thinking about the moment they zip up — which is precisely the point.
Fit and Construction
The Underground is cut on a Fit profile — close to the skin without restriction. The Nylon-Elastan composition provides enough inherent stretch that the suit follows every movement in the saddle, whether you are sliding back on the seat, hanging off through a fast corner, or shifting your weight under braking. The elastic compression zones at the wrists, ribs, back, and ankle bands act as subtle anchors, preventing the suit from riding up or creasing inside leathers during dynamic riding.
Flat-Lock stitching, where it does appear at structural seams, is worked flat against the skin rather than raised, so there is no ridge to chafe against the lining of your outer suit. The overall construction philosophy is minimal interference — a base layer that supports rather than distracts.
Road, Trackday and Circuit Use
The Underground is designed to perform across the full spectrum of on-bike use. For circuit riders and trackday regulars, it provides the clean, chafe-free foundation that a full session demands. For sport-touring and road riding in close-cut gear, it solves the everyday irritation of underwear that was never designed for a riding position. It packs small, adds negligible weight, and makes the overall wearing experience of your outer gear noticeably more comfortable from the first session.
Fitment and Compatibility
The IXON Underground Seamless undersuit is a men's garment designed for use beneath any close-cut motorcycle jacket, trousers, leather combination suit, or one-piece race suit. It is available in sizes XS through 2XL and is intended for road, trackday, and race circuit environments.
Specifications
| Attribute | Detail |
|---|---|
| Manufacturer | IXON |
| Model | Underground |
| Product type | Seamless undersuit / racing base layer |
| Gender | Men's |
| Intended use | Road, trackday, circuit |
| Material | Nylon + Elastan |
| Fit | Fit — close-to-skin cut |
| Construction | Seamless |
| Comfort details | Flat-Lock stitching for optimised wearing comfort |
| Compression zones | Wrists, ribs, back and ankle bands |
What's includedEverything in the box▼
- 1x IXON Underground suit
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.