Product details

• Official colorway: Bloom/Lime
• Season: Mid-distance track spikes for races between 800m - 1500m
• Brand: On Running
• Collection: Cloudspike Citius 2 1
• Style code: 3MF10304849
• Upper construction: Light, breathable one-piece upper with secure construction that locks the foot in, made from recycled polyester
• Technology: CloudTec® with Helion™ HF hyper foam midsole and half-length nylon-blend Speedboard®

Highlights

• Ultra-fast mid-distance design Purpose-built for 800 - 1500m, the Cloudspike Citius 2 is all about controlled aggression on the track. CloudTec cushioning is tuned for a fast, punchy ride, helping you stay smooth when the pace surges. Every stride feels primed for closing laps, giving you the tools to attack splits without feeling like your legs are being taxed early.
• Helion HF CloudTec cushioning Under the bright Bloom Lime upper, Helion HF Pebax-based foam teams up with CloudTec elements to balance softness and snap. Landings feel cushioned yet never mushy, letting you stay light on your feet as the race stretches out. Energy return stays high when it matters most, so your kick still feels dangerous in the final hundred.
• Speedboard and six-spike plate A half-length nylon-blend Speedboard sits above a focused six-spike configuration, turning your footstrike into forward momentum. The spike layout grips aggressively through bends and straights, keeping you stable even when the track gets crowded. It feels rigid where you want power, yet flexible enough to stay in rhythm when you’re changing gears mid-race.

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