The KARHU Fusion 4.0 for men in MOOD INDIGO / STONE BLUE is a running shoe with responsive cushioning for neutral runners. The new Fusion 4.0 is designed for runners looking for a shoe for both tempo and slow endurance training.
The biggest innovation is the reactive midsole. The midsole is injected with nitrogen, resulting in soft cushioning and forward energy return.

The KARHU Fusion 4.0 is the ultimate all-in-one shoe for runners seeking a unique combination of comfort, responsiveness, and performance.

Features :

• Shortened Fulcrum + propulsion unit for efficient landing and foot roll
  
• Nitrogen-injected
  
• AeroFoam midsole
  
• IdealKnit upper construction with enhanced ventilation
  
• M-Lock lacing construction ensures a good fit around the midfoot
  
• Weight size 44: 302g
  
• Heel-to-toe drop: 6mm