The men's Karhu Fusion 4.0 offers a plush and propulsive experience for neutral runners, designed to enhance the transition from heel to toe-off for a responsive feel at any pace.

• IdealKnit mesh upper for breathability and comfort
• Nitrogen-injected AeroFoam midsole for increased rebound
• Seamless heel-to-toe transition
• Suitable for neutral runners
• Colorway: Black / Stormy Weather