I'm not sure what ply they are but they been holding up real well on the rocks plenty of grip as well. I went over some pointed rocks and stuff even wedging my tire between two rocks it just bent and I made it threw no problems. For $192 installed I'm pretty happy so far with them man. Also last time on the beach my traction control only came on twice which was great considering how soft the sand was and the amount of people getting stuck.
I would have to agree