The 'pro' version look like the follow up to the 'Trail skins 2'. Based on what I can see, the sleeve or the sock goes up higher on the leg, which I like. I currently use RF Ambush pads as well as G-Form Elite knee pads for the warmer, more pedal-y days. They both have their pluses and minuses but there's some nostalgia when it comes to Dainese for me (I still have my Viking bibs!).