The ON Cloudspike Citius 2 are built for the cut-and-thrust of 800–1500m racing, these ultrafast mid-distance spikes deliver snap off the line and power through the bell lap. A half-length nylon-blend Speedboard® works with responsive Helion™ HF hyper foam to load and release energy, while a light, one-piece upper locks you in without weighing you down. With a compliant 20 mm forefoot stack and six-pin plate, they’re tuned for pure track speed. Features: Half-length nylon-blend Speedboard® for powerful, propulsive take-offs Helion™ HF hyper foam midsole for soft landings and fast rebound Six spikes for confident grip through bends and kicks Light, breathable one-piece upper with secure lockdown Compliant 20 mm forefoot stack height for mid-distance racing Materials: Upper: Recycled-polyester engineered mesh Plate/board: Nylon-blend Speedboard® Midsole: Helion™ HF hyper foam
