Craig Zwrote a review of Castelli Prologo HD Short Sleeve Jersey on September 12, 2011
I've got the all black and have worn it on some blistering days. Kept me fine. It isn't the lightest jersey in my closet but it is one of my go to jerseys. I'm 5'10" - 152 lbs and the medium fits me close enough to be a race day jersey. Only issue ever is that the pocket zipper can be finicky opening and closing from time to time, but once closed you know you won't loose your keys.