Spitfire - Formula 4 Classics 52mm 99a Spanky Happy Erik Center back showcases a playful

Center back showcases a playful stick-figure “Oceans Calling” stage setup drawn in the sand

Fit guidance: Adjustable buckle closure lets you tailor the fit for comfort

Cozy acrylic knit with a fold-over cuff provides extra warmth around the ears and a secure feel

Relaxed fit offers comfortable room through the shoulders and chest for everyday wear

Spitfire - Formula 4 Classics 52mm 99a Spanky Happy Erik Center back showcases a playfulKey Features Formula Four Urethane Unmatched abrasion resistance for fewer flat spots. More controllable grip. Lasting speed no matter the terrain. Smooth anti slick slide and a longer lasting size and shape. Wide profile More traction and stability at high speed so you'll be less likely to slip out of your line.