Karhu Men's Fusion 4.0 Running Shoe Womens Neutral Shoes while the ISOFIT upper adapts

while the ISOFIT upper adapts to the movement of your foot for a more dynamic fit and natural feel

Product information

This shoe's upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic reimagined plastic waste

Simply wrap strap around the knee and adjust the velcro straps to fit

Karhu Men's Fusion 4.0 Running Shoe Womens Neutral Shoes while the ISOFIT upper adaptsThe 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