For those who need the best, these US Flags use the highest performance glow material available and then are wrapped in cordura for long term durability. Indoor light will be good enough to give a small charge visible in the dark while purposefully charging with a source like a tac flashlight will give very prominent glow results. Made in the USA by IR.TOOLS.
(Just in case to clarify, these patches have no special IR features, the glow is in the normal visible spectrum which also shows up on NVGs)
Approx 3.75" x 2.2" with hook fastener sewn on the back.