Karhu Men's Fusion 4.0 Running Shoe Recovery thanks to a wider medial

thanks to a wider medial rubber segment stabilising late-stage pronation

Sculpted by data to smooth transition

the pants deliver advanced wind-chill protection without extra bulk

it’s the perfect shoe for your daily runs

reflective front facing font

Karhu Men's Fusion 4.0 Running Shoe Recovery thanks to a wider medialThe 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