Mine is a wet compound. LIke i say, i am yet to try it out in the wet or anything, but i am hoping for some good results. *fingers crossed* I am running around 25-30 psi in this tyre, and it feels really good, sidewalls seem stable enough, and was barely rimming out when i was doing rail gaps yesterday. I would say its pretty stiff, although due to the obvious weight difference i would say its a single ply (but considerably thicker than a single ply maxxis). I am by no means a tyre know-it-all, I just thought i would give my thoughts, so do not take it as gospel, nor should my post be interpretted as - you will not get any punctures, and this will be the best purchase you have ever made - as i have not tested the tyre intensively enough as yet.