Fire resistant
Nomex® Knit Underlayer
A soft, close-fitting meta-aramid knit worn next to the skin under the race suit — for base layers, socks and balaclavas.
- Fire resistant
- Yes
- Rating
- Our SFI underlayer range
From Cuircon specifications. Always confirm the rating your series requires.
All materialsTechnical data
| Composition | Meta-aramid (Nomex®) knit |
|---|---|
| Construction | Soft knit for a close, next-to-skin fit |
| Fire resistance | Inherent — meta-aramid fibre |
| Rating | Our SFI underlayer range |
| Used for | Base layer tops and trousers, Nomex® boxers, Nomex® socks, Balaclavas and head socks |
About this material
Underlayers add a fire-resistant layer between the driver and the suit. We knit ours from meta-aramid (Nomex®) for tops, trousers, boxers, socks and balaclavas.
Underlayers are cut for a close, next-to-skin fit — order your true size and do not size up. Our size guide has the full chart for tops, bottoms, balaclavas and socks.
Colours
Available in standard colours. Tell us your colours and we'll confirm what's possible for your order.
Colour chartMade with this material
Products
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More fire resistant materials
Nomex® 2-Layer Suit System
Our premium race suit construction: a 150 g/m² Nomex® outer shell over a 180 g/m² Nomex® inner layer, built to SFI 3.2A/5 with a TPP rating of 21.6.
- Fire resistant
- Yes
- Rating
- SFI 3.2A/5
- TPP
- 21.6
- Weight
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Proban® FR Cotton
A single-layer 295 g/m² flame-retardant cotton for SFI 3.2A/1 suits — the entry point into a certified race suit.
- Fire resistant
- Yes
- Rating
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- TPP
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- Weight
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Nomex® Glove Construction
Fire-resistant Nomex® gloves in single- and two-layer builds, made on a pre-curved racing block with a grip-enhanced palm.
- Fire resistant
- Yes
- Rating
- SFI 3.3/5
Build with Nomex® Knit Underlayer
Tell us the product, quantity and branding and we'll include this material in your quotation.