The men's Karhu Fusion is a high cushion running shoe for neutral footed runners. With a plush yet propulsive ride, it's ideal for performance-oriented athletes seeking a shoe for up-tempo workouts or race day.

The men's Fusion is lighter than previous versions and maintains a touch of rearfoot support while providing an even quicker transition. The renewed upper reduced weight while keep delivering a secure fit. The Fusion now features a shortened Fulcrum, the shortest in the collection, and a propulsion unit for an even faster feel. Lastly, extra cushioning is added to the forefoot for more protection at toe-off.

At Karhu, we know every runner has unique feet and precisely that given resulted in the new Fusion. The Karhu Fusion is built from a growing database of over 3 million 3D scans taken from runners’ feet. The Karhu Fusion is literally created by the runner, for the runner.

Key technologies:
-Fulcrum + Propulsion Unit
-IdealKnit mesh
-Ortix Fit
-AeroFoam midsole
-M-Lock lacing system

Weight US10: 300g / 10.5 oz
Heel-to-toe drop: 6mm

Delivery & Returns

IMPORTANT INFORMATION ABOUT ORDER SHIPPING IN DECEMBER AND JANUARY 2024

Orders and delivery

Our warehouse in the Netherlands will be closed for operation during the period of 27.12.2023 - 01.01.2024. Orders placed between these dates won't be shipped until we begin processing again on the January 2nd (02.01.2024)

Returns and refunds

Any returns received during this period won't be processed until January 2nd (02.01.2024). We will resume processing refunds once your return has been scanned within a maximum of 30 days.

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International Delivery 

Karhu is an international brand and we ship to most countries in the EU. Your order is prepared for shipment on business days the next morning after you placed your order. Typically, the warehouse is able to manage and send out your order the same day, or the next morning after they start processing it! Currently we aren’t able to offer you express shipping in the EU. The transit times below are indications of the transit time after your order has left the warehouse. Please note that our European warehouse is located in the Netherlands. On local holidays our warehouse is closed. 

Returns, Refunds and Exchanges 

We offer a 14 day return policy. If you choose to return for a refund, we'll provide a prepaid return-shipping label and a refund for the amount you paid for the returning item, minus a €5.00 restocking fee per return. The prepaid return-shipping label is included in your shipment (Except for Finland and France, for orders placed after 01-07-2020, please read details below), in case the return label is missing in your shipment, you must notify us at customerserviceEU@karhu.com within 14 days of the date the product was delivered to you. The returned product must be received by our facility within 21 days of the date the product was delivered to you. We will process your refund as soon as possible, after we have received the returned product, and within a maximum of 30 days.

All purchases done in stores, need to be returned at the store of purchase. We are not able to receive any returns of store bought products.

Please note that we do not offer product exchanges at this moment.

Returns from Switzerland & Norway:  

If you choose to make a return from Switzerland or Norway, you may choose any carrier for the return shipment. The shipment must be delivered to the address of our European warehouse (see below) for a refund. The returned product must be received by our facility within 21 days of the date the product was delivered to you and be in proper condition. We will process your refund as soon as we have the returned product and within a maximum of 30 days. 

When a customer would like to receive a refund, they must send the return shipment at their own cost (including duties and taxes) to the following return address: 

Bleckmann Nederland BV 

C/O Karhu 

Nijverheidsstraat 28 

7575 BJ Oldenzaal 

Size guide

STEP 1

Place a piece of paper on the floor with one end against the wall. Put your foot on the piece of paper with your heel against the wall.

STEP 2

Take a pencil and mark the end of your longest toe on the paper. Repeat for your other foot.

STEP 3

Measure in cm from the wall (heel) to the longest point (toe). Take the larger measurements. Than take what you measured + 0.5 CM and compare it with our shoe sizes in the size chart.