NewTechWood Ultrashield Naturale has a core of plastic and wood fiber, capped all 360-degrees in plastic. All plastic utilized is 95% recycled material. More information about the composition of the material is available here: https://www.newtechwood.com/us/ultrashield-advantage.html. NewTechWood composite material is 100% recyclable, as it is made of made of high-density polyethylene plastic and wood fiber.