I'm very impressed with the fit of the Craft Pro Nano jersey; snug on the arms and chest but not restrictive in any way. The rear pockets appear to fit lower on my back than normal, but the pockets keep my gels secure.
The jersey is cool. A great jersey for hot days.
I especially like the sleeves. The sleeves fit great and go down to just above my elbow. The material on the sleeves is different than the chest and they appear to provide good sunscreen.
Very impressed.
For a Jersey with an aero fit, the front is too long. In the riding position, it curls up at the bottom and gives you a wavy zipper. If it were 2 inches shorter it would be ok. I don't recommend because of this, relegated to the never wear pile.