Karhu Fusion 4.0

Karhu

Karhu Fusion 4.0

RoadDaily TrainerActive
79

$160

MSRP

Weight302g
Drop6mm
Stack28mm / 22mm

Key Specs

Weight302g
Drop6mm
Stack Height28mm / 22mm
Cushioning6/10
Responsiveness6/10
Flexibility5/10

Performance Radar

Performance

Pace Range4:30/km6:30/km
Ideal Distances
10khalf_marathonmarathondaily
Terrain
Road
Energy Return6%
Lifespan550 km
Ride Feel
Rocker

Construction

Midsole FoamNitrogen-infused AeroFoam
Upper MaterialIdealKnit
Outsole RubberPartial rubber coverage
Lacing SystemTraditional

Fit & Feel

PronationNeutral
Width OptionsD
Arch TypeNeutral
SizingRuns Small
Toe BoxWide
Heel CounterSemi Rigid

Expert Reviews

Doctors of Running

80

Updated nitrogen-injected foam and wider toe box. Natural balanced ride.

Read full review →

Runner Sentiment

What runners love

Comfortable wide fit
Good transitions
Balanced ride

Common concerns

Heavy
Runs short half size

Best For

Ideal for

Daily trainingLong easy runsWide feet

Not ideal for

Speed workRacing

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Where to buy

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