The men's Karhu Synchron 2.0 is a premium cushion daily trainer for neutral or mid to late-stage overpronators runners. The spring 2023 Synchron 2.0 received a complete update; a softer AeroFoam Nova midsole for the most comfortable run and redesigned upper, resulting in a premium supportive fit. Repositioning the stingray Fulcrum combined with a full contact durable outsole and a lighter midsole produces a soft, flexible, and stable ride with a smooth, supportive transition through the gait cycle. The Synchron 2.0 is ideal for longer runs and long days on foot.

New this season, the Synchron 2.0 is also available in a wide fit, KARHU calls this High Volume (HiVo).

Technologies Karhu Synchron 2.0:
-Anatomical lacing system
-Full-length Fulcrum
-IdealKnit
-Ortix Fit
-AeroFoam Nova midsole
-M-Lock
-Open-cell foam insole

Weight US10: 360g / 12.7 oz
Heel-to-toe drop: 8mm

RETURNS AND REFUNDS

We accept returns of all items within 15 days of receiving the order with the right to full refund minus a return fee of £5.00. A return label by Royal Mail is included in your shipment and a refund for the amount you paid for the returning item, minus a £5.00 shipping fee per return will be charged. If you are missing the return label or need to make a second return, please email our Customer service department at help@karhu.com to provide you a new return label.
 
We accept returns of all items within 15 days of receiving the order with the right to full refund of the product minus a £5.00 shipping fee per return.

Your return will be accepted if the goods are returned in the same condition as when you received the order. If the item has been used, damaged, washed, altered or missing tags/labels (for apparel), we are entitled by law to charge you a fee for the depreciation of the item. 

We will process your return and issue a refund within maximum of 30 days. Refunds will be issued via the original method of payment.

Returns from Germany, France, Austria, Ireland, Italy, and Poland:

To generate the return label, please visit the following webpage: https://karhu.returnmyorder-international.com. You will need your order number, and the post code/email address associated with your order to initiate your return and generate a label. You can find the order number either on the paper packing list inside the delivery box, the digital invoice sent to your email or on the order confirmation when you placed the order. (see below)

ATTENTION: Once generated, your return label can be used within maximum 5 working days. When your label expires, please contact help@karhu.com.

Order confirmation

Paper packing list

Digital invoice

FedEx Home Collection

For returns from Austria and Italy, you may request the FedEx Home Collection service in https://karhu.returnmyorder-international.com.

ATTENTION: FedEx Home Collection will be arranged automatically for the next available working day during business hours.

If you missed the FedEx Home Collection, within 5 working days you can drop off the parcel at the nearby FedEx point (here: https://local.fedex.com/) or reschedule a new pickup, following the instructions below:

• Go to your local FedEx website: fedex.com
• Click the “Shipping” tab on the top bar;
• Select: “Schedule and Manage Pickups”;
• Click “Let’s Start” under the “Drop-off or Collection”;
• Enter the tracking number from your FedEx label and your post code;
• Then select “Arrange A Pickup” and complete all the necessary information.

EXCHANGES

We currently don't do exchanges of products at Karhu. If you would like to change your item for a different color or size, please return your item and place a new order. 

Size guide