Karhu Men's Fusion 4.0 HiVo Running Shoe Recovery modern silhouette

modern silhouette

A new tongue further enhances the improved fit and comfort

A plush layer of PWRUN PB superfoam on top of a responsive layer of PWRRUN foam delivers the perfect balance of softness and support

Stretch for added movement and support

Karhu Men's Fusion 4.0 HiVo Running Shoe Recovery modern silhouetteThe KARHU Fusion 4. 0 HiVo 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