Weird Longboard

Hey guys,
Not sure how weird this, but i've never seen one like this until yesterday. Hard to describe, but it seems like the board is more of a wood outline/skeleton, and then just the top is a thin layer of laminate/glaze/poly-whatever on the surface. Think kind of something like a sled, with a thin laminate top? Does anyone know what it is i'm talking about?
Not sure how weird this, but i've never seen one like this until yesterday. Hard to describe, but it seems like the board is more of a wood outline/skeleton, and then just the top is a thin layer of laminate/glaze/poly-whatever on the surface. Think kind of something like a sled, with a thin laminate top? Does anyone know what it is i'm talking about?