WELL, It says right there in the name (SEA) foam. It does not say Moutainfoam, or Autozonefoam. So where else could it be from? Plus, when I used it, there was a slight salty smell to it, Im thinking the (Black Sea), maybe the (Red Sea), but then again, it is not black nor is it Red. Well, I will do some more research to determine what sea this comes from. I just hope the foam part isnt from a rabid dog.