Shoe Review: Karhu Synchron 2021
Karhu updated its luxurious Synchron for the new year. Here's what Fleet Feet reviewers thought of the Karhu Synchron 2021.
KARHU Synchron
original price $160
sale/discounted price$120
Star Rating is 3.9 / 5
Features
Packing the softest ride in Karhu’s lineup, the new men's Synchron delivers easy steps mile after mile.
Karhu achieved the soft feel by using its AeroFoam Nova midsole. The premium cushioning eases your landings and rolls you through a smooth transition that keeps you moving forward.
Designers updated the internal Fulcrum unit to make the new Synchron more flexible than before, but it still provides a stable ride.
Karhu topped the Synchron with a new mesh upper, too. The adjusted upper fits a wider variety of foot shapes and flexes easily for a more natural feel.
When you need premium softness that can stand up to the miles, the new men's Karhu Synchron has you covered.
Tech specs | Karhu Synchron |
Weight | 10.5 oz (W), 12.7 oz (M) |
Drop | 8 mm |
Stack height (heel/toe) | 23mm/15mm |
Category | |
Use | Everyday training |
Surface | Road |
What’s New
Karhu tweaked the upper for a more natural feel that works for a wide variety of foot shapes, and they updated the internal Fulcrum unit for a more flexible ride.
Who It’s Best For
The Synchron is best for neutral runners who want a high-cushion, durable ride.
Why You’ll Love It
The AeroFoam Nova midsole delivers soft landings and smooth transitions, and Karhu’s data-driven approach to fit makes it work for lots of different foot shapes and sizes.
Star Rating is 1 / 5
why did Karhu stop supplying the Synchron 2020 / 2021 - Best shoes ever
have been using the 20/21 for years i have 8 pair of them and willing to buy more as i rotate them every day have tried other Synchron models and styles unfortunately non fit as well as the 20/21's Additionally i have tried to purchase additional sock liners from Karhu and would U believe the liners are not available for sale -
Star Rating is 3 / 5
Comfortable But
This is my third pair and I love the shoe and feel but the bottoms on all three cracked all the way across after a couple of months.
Star Rating is 4 / 5
SteveE
Shoes are comfortable and very functional. Laces come undone sometimes.
Star Rating is 5 / 5
Karhu Synchron 2021
This is my second pair of these shoes. The first was the same model only 2020. They are great and I am very happy with these shoes. Excellent padding great for walking on streets sidewalks and the beach. The fit is very good and that's because of the precision work done by the 3-D fitting at Fleet Feet.
Star Rating is 4 / 5
KARHU Synchron Ortix 2021
This is my fourth pair of KARHU Synchron Ortix very comfortable and would give them a five except that the bottoms tend to wear fast otherwise they are a great shoe
