Spitfire Formula Four OG Classics 99d 53mm theory skate and snow heat-moldable core of the liner

heat-moldable core of the liner will begin to shape to your foot

Smooth anti-stick slide

Everyone who rides Swiss knows how fast they are and how long they last

Born on the pitch

and lined with the PopCush insole for optimal impact protection

Spitfire Formula Four OG Classics 99d 53mm theory skate and snow heat-moldable core of the linerSpitfire Formula Four OG Classics 99A. More speed and control on all surfaces. Unmatched flatspot resistance. Smooth anti stick slide. High rebound compund. 100% true performance urethane. Spitfires original cut away shape. Features a wider riding surface shape, lightened with cut away sidewalls. 53mm x 32mm, 99A.