Originally Posted By: Y_T_
...Regarding visibility in smoke, I'd have to say I don't think it would be very effective. For 2 reasons:...

The third reason - smoke particles may clutter the fine retro-reflective structure of some of the tape materials (not completely sealed), so it wouldn't reflect the light so effectively after a while. However, every firefighter's jacket I saw have the retro-reflective stripes. And logically, they should be more visible than any other color stripes on your clothes under directed light.