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Synchron 2020 Glacier Grey/Dusty Coral
SIZE IN US WOMEN
SKU_F200298
Karhu, revitalizes its premium running model, the Synchron Ortix, with all-new seasonal colours for Fall.
The Synchron 2020 showcases the latest in footwear advancements. Premium upper construction on a bed of plush AeroFoam Nova ensures maximal comfort and durability while the internal stingray fulcrum helps guide the foot and transition momentum efficiently. As a nod to the Synchron’s iconic past, the Ideal Knit mesh upper, shaped by Ortix, features the classic Karhu asymmetrical lace across the toebox to allow for micro-adjustments to the fit.
The refreshed Synchron 2020 is for the runner seeking plush cushioning underfoot without compromising an efficient transition and forward momentum.
The Synchron 2020 showcases the latest in footwear advancements. Premium upper construction on a bed of plush AeroFoam Nova ensures maximal comfort and durability while the internal stingray fulcrum helps guide the foot and transition momentum efficiently. As a nod to the Synchron’s iconic past, the Ideal Knit mesh upper, shaped by Ortix, features the classic Karhu asymmetrical lace across the toebox to allow for micro-adjustments to the fit.
The refreshed Synchron 2020 is for the runner seeking plush cushioning underfoot without compromising an efficient transition and forward momentum.
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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INFO
Karhu, revitalizes its premium running model, the Synchron Ortix, with all-new seasonal colours for Fall.
The Synchron 2020 showcases the latest in footwear advancements. Premium upper construction on a bed of plush AeroFoam Nova ensures maximal comfort and durability while the internal stingray fulcrum helps guide the foot and transition momentum efficiently. As a nod to the Synchron’s iconic past, the Ideal Knit mesh upper, shaped by Ortix, features the classic Karhu asymmetrical lace across the toebox to allow for micro-adjustments to the fit.
The refreshed Synchron 2020 is for the runner seeking plush cushioning underfoot without compromising an efficient transition and forward momentum.
The Synchron 2020 showcases the latest in footwear advancements. Premium upper construction on a bed of plush AeroFoam Nova ensures maximal comfort and durability while the internal stingray fulcrum helps guide the foot and transition momentum efficiently. As a nod to the Synchron’s iconic past, the Ideal Knit mesh upper, shaped by Ortix, features the classic Karhu asymmetrical lace across the toebox to allow for micro-adjustments to the fit.
The refreshed Synchron 2020 is for the runner seeking plush cushioning underfoot without compromising an efficient transition and forward momentum.