The On Cloudspike Citius 2 returns with a revised stack height of 20 mm with 100% Helion HF hyper foam, pairing well with any mid-distance track events. Also incorporated in the midsole is a half-length nylon Speedboard to help create more powerful take-offs that propel you forward. A recycled polyester upper helps secure your foot while keeping things breathable and lightweight.

Features & Benefits

• Helion HF hyper foam cushions landings and offers high responsiveness
• Half-length Nylon Speedboard helps optimize energy, creating explosive toe-offs
• Recycled Polyester upper is lightweight and breathable
• One-piece upper helps secure your foot
• Updated 20 mm stack height is World Athletics compliant