Check out the Olympia Airglide II from Olympia Moto Sports. I wear mine all summer and never get hot.
+1
I recently picked up the Airglide pants. They are much cooler than just wearing jeans. And they have better protection from abrasion and armor. Plus they have a water/windproof liner that adds extra insulation. The jacket has the same features.
I plan on picking up the jacket before next Spring.