Diadora’s Most Advanced Track Spike for Track & Field Athletes

Italian sport brand Diadora launches the Mezzofondo, a state-of-the-art mid-distance spike and the latest addition to the brand’s long heritage of high performance competition footwear. This full length carbon-filled spike is engineered for 800 to 10,000 meter races and is a fast rolling product with explosive propulsion and energy return. It was designed and developed by the Centro Ricerche Diadora, the brand’s in-house performance center based in Caerano di San Marco, Italy, and was tested extensively by Diadora’s athletes, including NIL athlete Marco Langon.

The Mezzofondo’s top-of-the-market performance stems from Diadora’s experience with sculpting the carbon plate for maximum propulsion, while Diadora’s enhanced ANIMA PX midsole provides responsiveness and lightness. The result is a race spike with a more stable and efficient stride plus 74% energy return.

Specs:

• FASTENING: Laces
• WEIGHT: 6.3 0z
• UPPER: Nylon Air Mesh
• INSOLE: EVA Sheared
• MIDSOLE: Anima PBX, Carbon-filled
• SOLE: Bylon + 6mm cleats
• PRICE: $260
• DROP: 19mm

MIDSOLE

Anima PBX supercritical midsole provides our highest energy return (+85%) with reduced weight and increased control. The denser compound (0.9 g/cm3) minimizes deformation on impact, improving durability and efficiency. Paired with a full-length carbon-filled spike plate engineered with extreme curvature for optimal propulsion and smooth rolling transitions.

OUTSOLE

Durable nylon plate base with 6 mm replaceable spike pins ensures traction across the track. The plate’s special medial shaping limits heel bending upon landing for a stable, efficient stride.

INSOLE

Lightweight EVA sheared insole for direct underfoot comfort and optimal energy transfer.

UPPER

Engineered nylon air mesh delivers a lightweight, breathable fit with supportive structure. Designed for secure lockdown during mid-distance racing efforts.

PURPOSE

Developed for peak performance from 800m to 10,000m, Mezzofondo perfects propulsion through its full-length carbon plate and elite-grade Anima PBX compound. The result: +4% energy return versus the leading competitor, fast rolling transitions, and explosive take-off power. Ideal for competitive athletes seeking ultimate race-day responsiveness, stability, and control.