It is a composite made of a foam kernel and fiberglass / carbon on both sides. This is the same material that CARF has always been using and a typical way to build composite aircraft including full scale.
Really, there is nothing to worry about. This is state of the art stuff.
There is a very light layer of fiberglass on the seams is all I see. But my point is that is not a epoxy resin/fiberglass layup. Not saying its not safe, it just much weaker than glass in terms of rash resistance. Its like handling a foamy you have to be careful.
My old JL 1.9m viper is heavy glass and rock solid bullet proof more my style!