The KARHU Fusion 4.0 HiVO is designed for neutral runners seeking a plush and propulsive experience. This iteration of the Fusion 4.0 features updates aimed at enhancing the transition from heel to toe-off for a responsive feel at any pace.

• IdealKnit mesh upper for breathability and comfort
• Midsole features nitrogen-injected AeroFoam for increased rebound
• Designed for a seamless heel-to-toe transition