A tip-of-the-spear product geared for elite athletes, the new Cielo X 3 MD is ready for your next race or PR with upgrades underfoot and a fresh new upper. Upgraded PEBA foam and a more dynamic plate shape make for an even springier ride around the track. And a sleek collar and lightweight zonal upper balance structure with breathability and drainage for a sock-like fit engineered specifically for tearing up the middle distances (800m-3K). Features. Zonal upper for structure, breathability, and drainage. Super sleek collar. Lightweight race tongue construction. Upgraded PEBA midsole. Full-length reverse-forked carbon plate. Medially raised plate design for additional loading. TPU shark skin traction element. Six-pin spike plate.