Karhu Men's Fusion 4.0 Running Shoe

ENHANCED BREATHABILITY: The Karhu Fusion 4.0 running shoe boasts an upgraded IdealKnit mesh upper in a stylish brindle pattern, providing improved breathability to keep your feet cool and comfortable during your runs.
RESPONSIVE PERFORMANCE: Experience a smoother transition and enhanced toe-off with the increased toe spring and rockered midsole shape of the Fusion 4.0, delivering a propulsive and responsive running experience.
SUPERIOR CUSHIONING: Featuring an innovative AeroFoam cushioning with nitrogen infusion, these shoes offer better rebound and support for your every step, ensuring a comfortable and cushioned ride.
IMPACT ABSORPTION: The Fusion 4.0 is designed with a deflection channel in the midsole, effectively absorbing impact and delivering a more cushioned running experience, reducing the strain on your joints.
HIVO: Available in both medium width and HiVo (Wide). More than just “wide,” HiVo provides a higher volume upper to accommodate thicker or broader feet, and feet with common problems like bunions, calluses and corns.

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