Men's Shoes Neutral Running Karhu

KARHU Fusion Ortix 2020


The new Karhu Fusion Ortix is better than ever.

Redesigned with a sublimated engineered upper, the Fusion provides a seamless feel and secure fit without losing the stable landing and forward momentum of the previous model.

Underneath, the Fusion uses Karhu’s proprietary Aero Foam cushioning. The foam offers a lighter right a cushier feeling than typical EVA, and it’s more resistant to temperature changes.

Embedded into the midsole is Karhu’s signature fulcrum technology. The Fusion has a 3/4-length fulcrum that increases support in the middle of the and promotes a forward rolling effect.

Tech specs

Karhu Fusion Ortix




9.3 oz (women’s); 10.9 oz (men’s)




Everyday trainer




Road, track

Reviews (2)

5 out of 5 stars.

5/5 on 2 total reviews

RON Verified Buyer
5 out of 5 stars.
Karhu Fusion

Thumbs up! Like the feel and cushioning in the shoes.

5 out of 5 stars.
Karhu Fusion Ortix 2020 is perfect for me!

This shoe couple with run comfort insoles has been life changing for me! Had been using a different shoe with less drop and no insoles and had been straining my Achilles, lower back and hip. I can now run, jog, and walk pain free. Thanks Fleet Feet for the excellent fit process!

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