Spitfire Formula 4 OG Classics 99D Skate Wheels Natural 58mm outerknown durable design ensures long-lasting wear

durable design ensures long-lasting wear across seasons

and a left forearm pass pocket

Newly reengineered to taper between the insert packs for a more forgiving flex

Heavyweight Fabric Structure: Increased fabric weight provides enhanced shape retention and structure

New Helix Cord

Spitfire Formula 4 OG Classics 99D Skate Wheels Natural 58mm outerknown durable design ensures long-lasting wearSpitfire Formula 4 OG Classics 99D 58mm Formula Four Urethane delivers exceptional wear resistance to help prevent flat spots. Offers predictable grip for greater control, maintains speed across all types of terrain, and provides smooth, consistent slides without sticking. Built to retain its original size and shape longer for lasting performance.