sports board comprising an elongated expanded closed - cell polyolefin foam core having a core thickness and opposed surfaces , a first polyolefin sheet layer having a thickness less than the core thickness and having an inner surface and an outer surface , an intermediate metallocene - based polyolefin layer having an inner surface and an outer surface and a thickness less than the core thickness , the intermediate layer bonded on its inner surface to the core and bonded on its outer surface to the inner surface of the first layer . the intermediate layer may comprise an ethylene - alpha olefin copolymer and may comprise a copolymer of ethylene and octene .