Insoles Sizing Guide

| EU Size | 1. Heel width | 2. Ball-of-foot width | 3. Heel-to-toe length | 4. Arch support width | 5. Arch support length |
| 36-37 | 5.6 cm | 8.8 cm | 24.3 cm | 6.6 cm | 14.4 cm |
| 38-38.5 | 5.9 cm | 9.0 cm | 25.2 cm | 6.9 cm | 15.0 cm |
| 39-39.5 | 6.1 cm | 9.3 cm | 26.0 cm | 7.1 cm | 15.6 cm |
| 40-41 | 6.3 cm | 9.5 cm | 26.8 cm | 7.2 cm | 16.1 cm |
| 41.5-42 | 6.4 cm | 9.7 cm | 27.7 cm | 7.4 cm | 16.7 cm |
| 42.5-43.5 | 6.5 cm | 10.0 cm | 28.6 cm | 7.6 cm | 17.2 cm |
| 44-44.5 | 6.6 cm | 10.2 cm | 29.5 cm | 7.7 cm | 17.7 cm |
| 45-46 | 6.8 cm | 10.5 cm | 30.5 cm | 7.9 cm | 18.3 cm |
| 46.5-47 | 8.8 cm | 11.5 cm | 31.0 cm | 8.2 cm | 19.1 cm |
What is my Arch Height?
Finding your arch height is as easy as looking at your wet footprint. See how it's done.
| Is your footprint between arch heights? Start with the lower arch and see how it feels. Free exchanges make it risk-free to try them out. |
| What Does Your Wet Footprint Look Like? | Describe Your Arch | Your Best Tread Labs Insole Height |
|---|---|---|
![]() |
My arch is flat when I stand or sit. | Low |
![]() |
My arch is flat when I stand but appears when I sit. | Medium |
![]() |
My arch is close to but doesn't touch the ground. | Medium |
![]() |
My arch is high off the ground when I stand. | High |
![]() |
My mid-foot barely touches the ground, if at all. Sometimes, my footprint is two pieces. |
Extra high |
Wet Foot Test
Quickly and easily find your arch height with this simple test.




