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Synchron Classic OG
New to the Synchron Classic? Order one size bigger than your normal size.
SKU_F802511
The Synchron Classic features a new compression molded EVA midsole which is current in most modern running shoes. The dual density construction remains true to the original version from the early 1990s. The upper materials have been improved to premium pigskin suede from synthetic overlays while the original mesh appearance remains true to the era. To modernize the silhouette, Karhu makes the Air Cushion technology both visible and functional in the outsole. Most importantly, Karhu keeps the unique Synchron Classic lacing structure which served as a way to tighten the forefoot upon repeated use.
Karhu Feet Measurement And Table

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
Put your foot on the piece of paper with your heel against the wall

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

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.
Feet Measurement (in centimeters) |
US Men Size |
US Women Size |
EU Size |
UK Size |
23 | 23.4 | 23.8 | 24.3 | 24.6 | 25.1 | 25.5 | 25.9 | 26.3 | 26.8 | 27.2 | 27.6 | 28 | 28.5 | 28.9 | 29.3 | 29.7 | 30.1 | 30.6 | 31 |
4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | - | - | - | - |
35 | 36 | 37 | 38 | 39 | 39.5 | 40 | 40.5 | 41.5 | 42 | 42.5 | 43.5 | 44 | 44.5 | 45 | 46 | 46.5 | 47 | 48 | 49 |
3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | - |
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