RUN HIGHER. THROW FARTHER. The Zoom SD 4 delivers contoured support for elite-level performance. The no-sew upper provides seamless comfort while the midfoot strap and Flywire cables wrap under the arch, helping to minimize internal movement as you're preparing to launch. UPPER No-sew with mesh by the toes and on the sides for breathability. Rubber toe tip for durability. Integrated strap and Flywire cables wrap the arch for a secure fit. MIDSOLE Forefoot molded plastic plate provides durability underfoot. Foam adds comfort, support and stability. OUTSOLE Flexible and textured with high-abrasion rubber helps provide ground-gripping traction in wet conditions. Elite-level performance across the shot put, discus, and hammer throw. WEIGHT: 301 g | 10.6 oz Available in unisex sizes only. For women we suggest ordering 1.5 sizes smaller than you usually wear. Please note: all spikes are non-refundable - Exchange Only