Karhu Men's Fusion 4.0 HiVo Running Shoe Baselayers Toe the line and take

Toe the line and take on the competition

ensuring your foot remains secure and comfortable in the proper position during runs

supported by the research carried out with our athletes

Fabric: 50% Lenzing Modal

PWRRUN foam provides more cushion

Karhu Men's Fusion 4.0 HiVo Running Shoe Baselayers Toe the line and takeThe 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