The Fusion 4.0 is cushioned by its nitrogen-infused AeroFoam midsole, which adds bounce to your stride and absorbs impact perfectly on landing.

Fulcrum+ technology gives you more propulsion as you run for a more efficient step and a nimbler stride, with extra forward drive.

The IdealKnit upper offers excellent breathability, and its mesh structure makes the shoe softer and more comfortable. M-Lock lacing locks down the midfoot perfectly for excellent stability.

The rubber outsole lets you run on tarmac with excellent grip and traction.

Details

What makes the Karhu Fusion 4.0 unique:

· IdealKnit mesh upper;

· AeroFoam midsole;

· Fulcrum+ technology;

· rubber outsole;

· weight: 302 g;

· drop: 6 mm.