I have the short sleeve version of the Craft Wind Stopper baselayer: Baselayer - Men

The long sleeve version appears to not have blocking fabric all the way down the arms, though.

To the naysayers, I've done a lot of cold weather cycling and the baselayer mentioned above was one of my best purchases. My torso catches far more wind than any other body part and when my torso gets cold, everything else gets cold. I overheat easily wearing any 'breathable' windproof jackets which seem to never meet their promise. The Wind Stopper baselayer keeps my core warm and dry like nothing else can.