Men's Shoes Neutral Running Karhu

KARHU Synchron 2020


The Karhu Synchron 2020 is the most luxurious yet.

Cushioned by an AeroFoam Nova midsole, the Synchron delivers a plusher ride than traditional EVA foam compounds. Designers paired the AeroFoam with Karhu’s signature Fulcrum technology, which provides smooth transition and helps runners keep their momentum moving forward.

Karhu built the Synchron 2020 with the help of more than 100,000 3D foot scans taken through Fleet Feet’s fit id outfitting process. The scans help ensure the best possible fit, so you can run in comfort.

Tech specs

Karhu Synchron 2020




9.9 oz (women’s); 11.6 oz (men’s0


8 mm


Everyday trainer




Road, track

Reviews (7)

5 out of 5 stars.

5/5 on 7 total reviews

Brandon Verified Buyer
5 out of 5 stars.
Best shoes ever

I was a hoka guy before I tried in these Kahru's. These are the best shoes I've ever put on. Highly recommend!

Zachary Verified Buyer
5 out of 5 stars.
Karhu synchron

Very comfortable shoe. Keep my feet comfortable all day at work

Glen Verified Buyer
5 out of 5 stars.
Excellent Customer Service

Excellent Customer Service

5 out of 5 stars.
Best Running Ever - Love them!!!

Best running shoes I've ever worn. I am a woman so they are a bit heavier than I'm used to however, you can't beat the comfort.

MARK Verified Buyer
5 out of 5 stars.
Best Running I've Worn in a While

This is one of the best running shoes I've worn in quite a while. I run mostly on my forefoot, this shoe compliments that style of running extremely well. When my legs are tired, these shoes make it easier to get my mileage done. Highly recommend these shoes. More people should give them a try.

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