Spitfire Formula Four OG Classics 99d 54mm size-m8-w9-5 Innovative cupsole design gives you

Innovative cupsole design gives you next-level boardfeel and impact absorption

the Authentic is a blank canvas for creativity that allows you to do your thing in your own unique way

blending retro charm with a modern edge

and an anti-fatigue coring design

Spitfire Formula Four OG Classics 99d 54mm size-m8-w9-5 Innovative cupsole design gives you99a Durometer More speed and control on all surfaces. Unmatched flatspot resistance. Smooth, anti stick ride. High rebound compound. Formula Four Urethane Formula Four urethane is unlike any other. Both in the streets and under high speed stress tests in Spitfire's lab, Formula Four wheels retained more material, coned less and kept their original shapes and sizes longer than any other wheel. Classic Shape The #1 shape in skateboarding worldwide