Spitfire Wheels F4 OG Classic 53mm 99a fb8587-072 Ndurance outsole and a layered

Ndurance outsole and a layered upper are complemented by exaggerated N branding

More Details Zippered fly

Flexible Bounce midsole cushioning

Conical Full Shape - Wider version of the conical shape

Printed 100% Cotton Ringer Jersey

Spitfire Wheels F4 OG Classic 53mm 99a fb8587-072 Ndurance outsole and a layeredSpitfire Wheels F4 OG Classic 53mm 99a 99a 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. Unbeatable lasting performance Spitfire urethane. Fast as hell. Long lasting, abrasion resistance, smooth anti slick slide with a controllable grip, guaranteed*. High Rebound Compound SIZE WIDTH RIDING SURFACE 51MM 31.