Andy Goldfine (founder of Riderweahouse) is a bicyclist and motorcyclist, and makes some gear that might meet your needs in the winter, but not in the summer. I've got a beloved old 'stitch that I still wear as a jacket, but I've never worn it while bicycling. I don't think it offers enough venting to offset all the heat it would trap even if I wore it in the winter up here in Chicago.

Those mesh jackets might be the best thing for your needs. Many of us were skeptical of them when they came out, but the jackets offered way more protection than we thought and got a lot of riders to start wearing safety gear.