paularmstrongwrote a review of Castelli Prima Jersey on September 23, 2013
Familiarity: I've put it through the wringer
As others have said, the material is very light and breathable--great for summer/warm weather rides. They have no sleeve grips (which I like), but do have a bottom/waist grip (that's very light and doesn't ride up). I've got two of these now and will probably end up getting another soon. The rear pockets are pretty standard, but don't hold as much as you may be used to, which is pretty common for such a light, tight jersey. The middle pocket has an external mini zipper pocket as well.
These are definitely race cut, but Medium is very comfortable for me: 5'11", 150, 30" waist, slim arms.