Karhu Men’s Fusion 4.0 HiVo Size:9 High-visibility design plus lightweight

High-visibility design plus lightweight

responsive ride that protects your feet from impact

Prepare to take on your next race with confidence

flex grooves throughout the durable outsole design contribute to the shoe's smooth and agile ride

Karhu Men’s Fusion 4.0 HiVo Size:9 High-visibility design plus lightweightThe men's KARHU Fusion 4. 0 provides a plush and propulsive ride ideal for the neutral runner. New additions and adjustments to the Fusion 4. 0 make this shoe exceptional at seamlessly accelerating the transition from heel to toe off, ensuring a responsive underfoot experience regardless of pace. This update utilizes soft IdealKnit mesh for improved breathability and comfort. Most notable is the incorporation of new nitrogen injected AeroFoam in the