Spitfire's Classic shape has stayed the brand's go-to all-around profile since Jim Thiebaud founded the company in San Francisco back in 1987, under the same Deluxe Distribution banner that also backs Real Skateboards, Antihero, and Thunder Trucks. It's cast in Formula Four, the urethane formula Spitfire rolled out in 2013 for better flatspot resistance and longer-lasting grip, and still carries the grinning Bighead logo artist Kevin Ancell created for the brand in 1992. This set measures 54mm at 97a durometer.