LOL - this girl I like at work upon seeing me dressed and ready to leave one day with my sleeves attached - put her hand up to her eyes and commented on how bright I was, and she didn't mean smarts. More and more people are wearing these so I feel great about having one.

There is this interesting problem though which is dark colors contrast it better and black looks great with the vest but then your arms become invisible if it's dark. There's a guy in my neighborhood - who like one responder said wears white sleeves so his signals can be seen.

Fortunately I don't ride at night.