The brand new men’s Fusion 4.5 is the latest version in our Fusion line-up. The shoe remains a plush and propulsive neutral trainer with a familiar streamlined fit that seamlessly accelerates the transition from heel to toe-off.

New adjustments to the shoe utilize refined IdealKnit mesh for improved breathability and comfort, with added reflective details for improved visibility. A redesigned tongue that is softer, more accommodating, and offers a premium on-foot feel. The incorporation of nitrogen-injected AeroFoam in the midsole provides better rebound and a more cushioned experience for improved comfort during runs.

The KARHU Fusion 4.5 is the ultimate all-in-one shoe for runners seeking a unique blend of comfort, responsiveness, and performance.

Technologies KARHU Fusion 4.5
- Fulcrum + Propulsion Unit
- IdealKnit
- Nitrogen-infused AeroFoam midsole
- M-Lock lacing system

Weight US10: 302g / 10.7 oz
Heel-to-toe drop: 6mm

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The men's KARHU Fusion 4.5 Monument / Blue Haze delivers a plush yet responsive ride tailored for the neutral runner. This versatile daily trainer supports smooth heel-to-toe transitions and offers a cushioned, energetic underfoot feel to keep you moving effortlessly. A shoe made for tempo runs, training sessions, and workouts.

New adjustments to the shoe utilize refined IdealKnit mesh for improved breathability and comfort, with added reflective details for improved visibility. A redesigned tongue that is softer, more accommodating, and offers a premium on-foot feel. The incorporation of nitrogen-injected AeroFoam in the midsole provides better rebound and a more cushioned experience for improved comfort during runs.

The KARHU Fusion 4.5 is the ultimate all-in-one shoe for runners seeking a unique blend of comfort, responsiveness, and performance.

Details KARHU Fusion 4.5
- Shortened Fulcrum + Propulsion unit for an efficient stride.
- Nitrogen-infused AeroFoam midsole for improved comfort during runs.
- Updated IdealKnit mesh construction with improved breathability.
-Increased visibility with reflective prints
- M-Lock lacing construction ensures a secure midfoot.

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The KARHU Fusion 4.5 is a highly responsive, cushioned running shoe for neutral-footed runners. It is sure to elevate your run and propel you forward.

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Size UK 10.5 - Running

Size UK 10.5 - Running

MEN'S FUSION 4.5

MONUMENT / BLUE HAZE