When ripping around the track at dizzying speeds, a fast spike is a prerequisite for performance. Engineered with a propulsive carbon fibre plate and designed in accordance with World Athletics’ guidelines, the Cielo X MD is geared for middle distances (800m-3K). Combined with HOKA’s lightest performance foam, this responsive race flat delivers a snappy ride in under 4.5 ounces. Combined with HOKA’s lightest performance foam, this responsive race flat delivers a snappy ride in under 4.5 ounces. More cushioning than we’ve ever put in a spike, plus HOKA’s first spike with a carbon fiber plate. It’s all kinds of amazing. HOKA Cielo X Md in Blue Glass/Radiant Yellow, Size 12.5