I'm one of those thrice damned ninja cyclists that you don't see until its almost too late... sarcasm aside if it wasn't for my hi-vis yellow vest and crap ton of reflectors, I would be one of them ninja cyclists. As for what I wear, well, in nice weather "jeans" (pants of some sort or shorts if its really super nice) and a t-shirt, in crappy I add at least a wind breaker.