I just picked up a Performance Illuminite jacket (the same one in the picture above) for my wife. Last night was the first time she's worn it out after dark on a ride to the grocery store with me. I was trying to see just how reflective she was (trailing by 20 ft or so). I also recently put a lot of reflective tape and pinstriping on her bike too, as she's riding more at night now, so it was a good reflectivity "test drive."

We've only done this one test, and so far I'm not super impressed by the reflectivity of the illuminite. My generator light wasn't really making the illuminite shine, but all the other reflective bits on her wheels, cranks, rack and such did pick up the light. I was careful to try a pay attention to the reflectiveness as cars passed us with headlights on, and still really didn't see the illuminite pick up much light... Maybe my sight angle isn't good, and maybe it's more effective at a distance with brighter lights? We'll have to do some more trials.

BUT all this being said, the jacket is BRIGHT yellow, cut for cycling, and was only $55... she's happy with it, and she feels safer cycling after dark... For the money, I'd say it's still a bargain. Maybe sewing in some SOLAS tape would help?

The only other illuminite clothing I have is a waterproof helmet cover, and it appears to pick up light better than the jacket. I haven't "seen" it while riding, as I'm wearing it... so I'm basing this on the reflectivity I've noticed in my garage when headlights, or bike lights hit it.