Well, not all, but all the softshells that are both somewhat warm and somewhat comfortable are. Marmot DriClime Windshirt, Patagonia Guide, some New Balance thing I got from a race. I'm realizing that's not the greatest for cycling. I rock some pretty powerful bike lights now: Urban Light & Motion 550 on the front, CygoLite Hotshot 2 on the back, and a UL&M Vis 180 on the back of my helmet, but I think I should probably wear a nice reflecty jacket. I've got lighter-colored, if not reflective, rain gear and windshirts for warmer weather, but is there a not-stupid-looking-for-casual-wear-but-bright-and-reflecty light softshell that people like?
I also obviously need to take the spoke reflectors off the old heavy commuter that I gave up on and put them on the Lemond I now ride all the time. Also, I need to adjust the derailleur so I can actually get into high gear.