I have no earthly idea what you mean when you say "cooler temps" and you haven't filled out the location in your profile, so give us an idea...

The next thing I'd recommend is reading some of the articles at www.icebike.com and pretty much avoid anything cotton. When you ride a bike, there's always a wind chill. Not to mention avoiding getting wet and going hypothermic. Too little ventilation, and you overheat... too much, and you get soaked.