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Running shoes / Road running shoes / Karhu

Karhu Fusion 4.0
Fusion 4.0 — view 2
Fusion 4.0 — view 3

Karhu · women

Fusion 4.0

Sea Foam / Excalibur

£70.00£140.00−50%

checked

Sizes at best price (UK)

66.578

Colourways — prices differ

Where to buy

RetailerPriceStockCheckedBuy
Up & Running£70.00in stockGo to shop

On paper

The Fusion 4.0 is a road shoe from Karhu.

We track 3 colourways of this shoe, priced from £70.00 to £84.00 right now. This Sea Foam / Excalibur build sits at £70.00. Retailers clear colour by colour, so the spread moves week to week.

From Karhu

Experience the unique blend of comfort, responsiveness, and performance with the Women's Karhu Fusion 4.0.

The AeroFoam midsole, now nitrogen-infused, provides the right balance of cushion and responsiveness. The midsole has an increased rebound, with the addition of a deflection channel that helps to absorb impact. The IdealKnit upper has been updated for a more breathability and comfort.

A shoe designed by women for women, the women's Fusion 4.0 encompasses HeraFit, a personalised women's construction of the circumference volume adjustment at the instep and forefoot.

Shortened Fulcrum + Propulsion unit for an efficient stride.

Manufacturer's description, supplied via the retailer feed.

Other versions of this model

Same model, another edition or build — every colourway in stock, cheapest first.

Similar shoes

Same surface and sex, closest on drop, weight, support and price. Cheapest colourway of each.

Complete the kit

Kit that goes with this, in stock now — a spread of prices, not our picks.