These are military issued IR US flags worn for Friend or Foe identification. The flag is made of material that reflects when viewed under IR light.
Military IR Flag Patch, Forward [Genuine Issue]
Infrared Reflective Patch - NOUS DEFIONS US Flag Forward 3 x 5 ( Multicam ) ( Free Shipping )
Why do some flag patches have a gold trim around them and others don't? : r/Stargate
Infrared Reverse US Flag Uniform Patch IR
3DMA PATCHES AND FLAGS free VR / AR / low-poly 3D model
Genuine Reflective (mil-spec) USA Flag patch. White light reflective, non-fabric Glo-Tape patches with Velcro® hook backing attaches to Velcro® on
Full Color (white light reflective) US Flag uniform Patch USA Military (choose size) — Empire Tactical USA
American Flag IR Hybrid Field Patch – RE Factor Tactical
IR.Tools Field Infrared IR Forward American US Flag Patch Green/Black
Forward Mini 2x1 Full Color US IR Infrared Flag Uniform Patch USA Military