NIR compliance means a fabric does not reflect near-infrared light more strongly than the surroundings do. Night vision devices work in that band, so a garment can blend perfectly by daylight and still glow as a pale shape in a night vision device if the dye was never treated for it.
Why camouflage that works by day can fail at night
The classic situation: a kit is chosen by colour, it matches the terrain in photographs, and the wearer is confident. Then, seen through a night vision device, the silhouette stands out against a background that looked identical to the naked eye. The problem is not the pattern or the stitching. It is the dye and the finish.
Daylight and night concealment are two different engineering tasks. The eye sees reflected visible light; a night vision device amplifies the near-infrared band. A dye without NIR treatment reflects that radiation differently from grass, soil or concrete around you, and that difference is what makes you visible.
How NIR-compliant fabric works
In NIR-compliant fabrics the dyes and finishes are selected so that reflectance in the near-infrared band sits close to that of natural surfaces. The garment then has roughly the same brightness as the background in a night vision device, and the outline does not separate from it.
This is a property of the fabric and the dye, not of the cut. Two garments in the same visible colour from different makers can behave very differently in a night vision device, and you cannot see that difference by looking at them.
Is every UATAC item NIR compliant
Part of the UATAC range is made from NIR-compliant fabrics. That does not automatically extend to the whole line: the profile depends on the specific fabric and colour, so check the specifications on the product page.
| What to check | Where | Why it matters |
|---|---|---|
| Fabric of the model | Specifications on the product page | NIR is a fabric property, not a cut property |
| Exact colour | Product name | Multicam, Multicam Black and Black have different finishes |
| Generation | Model name (Gen 5.6, Gen 5.7) | Fabrics can differ between generations |
Why the colour has to be named exactly
Multicam, Multicam Black and Black are three separate colours, not shades of one. Their coatings differ, and so does their behaviour in the near-infrared band. Saying «black multicam» in an order means nothing — we will ask which one you mean, and that is not bureaucracy but an attempt not to ship you a different reflectance profile.
What NIR compliance does not give you
It does not make you invisible to thermal imaging. A thermal imager reads the heat your own body radiates, not reflected infrared light — a different band and different physics. A well-insulated garment can even sharpen the contrast between a covered torso and exposed skin.
Anti-thermal measures are a separate class of equipment, not a property of a uniform. Anyone promising «invisibility to thermal» in ordinary trousers or a jacket is selling something other than what they claim.
The second limitation: concealment works as a system. A shiny watch, uncovered optics, tape on magazines and a light-coloured pack cancel out any fabric NIR profile.
How to preserve the property
- Wash gently, up to 30 °C, with the garment turned inside out.
- No bleach, no fabric softener, no colour boosters — they change the fibre surface and the pigment.
- Do not dry on a radiator and do not iron at maximum: excess heat damages the finish.
- Never re-dye faded areas with household dyes.
Frequently asked questions
What is NIR compliance in simple terms?
It is the ability of a fabric not to reflect near-infrared light more strongly than the surfaces around it, so the garment does not appear as a bright patch in a night vision device.
Does NIR-compliant fabric protect against thermal imaging?
No. A thermal imager detects radiated body heat rather than reflected infrared light. That requires separate anti-thermal equipment.
How do I know whether a specific model is NIR compliant?
Check the specifications on that product page. If you need confirmation for a procurement, send us the item number and colour.
Does washing change the NIR profile?
Gentle washing up to 30 °C without bleach or softener preserves the fabric properties. Aggressive chemicals and high heat alter the pigment and the finish.
Do Multicam and Multicam Black behave the same in the infrared band?
No. They are different colours with different finishes, so their reflectance profiles differ. The colour has to be stated precisely.
Author: Serhii Vynnyk, founder and CEO of UATAC. Updated: 16 September 2026.