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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 |
|---|---|---|
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My arch is flat when I stand or sit. | Low |
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My arch is flat when I stand but appears when I sit. | Medium |
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My arch is close to but doesn't touch the ground. | Medium |
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My arch is high off the ground when I stand. | High |
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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.

What's my Arch Height?
You can easily determine your arch height in 4 steps. See the steps below.
To determine the correct arch height, you will need three things:
- Water
- Cardboard or paper
- Shower or tub
Step 1: Wet the bottom of your foot thoroughly in the shower or bath.
Step 2: Stand on the cardboard or paper.
Step 3: Step off gently.
Step 4: Compare the footprint with the images below.
Is your footprint between arch heights? Start with the lower arch and see how it feels.
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Low
My arch is flat when I stand or sit.
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Medium
My arch is close to but doesn't touch the ground.
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High
My arch is high off the ground when I stand.
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Extra High
My mid-foot barely touches the ground, if at all. Sometimes, my footprint is two pieces.
Wet Foot Test

What's My Arch Height?
To determine the correct arch height, you will need three things:
- Water
- Cardboard or paper
Step 1: Wet the bottom of your foot thoroughly.
Step 2: Stand on the cardboard or paper.
Step 3: Step off gently.
Step 4: Compare the footprint with the images below.
-
Low
Basic support for every foottype
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Medium
Best support if your arch is close to but doesn't touch the ground.
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High
Best support if your arch is high off the ground when you stand.
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Extra High
Best support if your mid-foot barely touches the ground, if at all. Sometimes, your footprint is two pieces.
Why Tread Labs Insoles are Better
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Support that fits your arch
Available in multiple arch heights, so you choose support that matches your foot instead of a one-size-fits-all solution
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Long-lasting structural support
The supportive core maintains its shape over time. Unlike soft insoles that compress quickly, Tread Labs insoles provides consistent stability.
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Replaceable top cover
When the top layer wears out, simply replace it. The supportive base remains intact, making the system more durable and cost-effective.
Commonly chosen for everyday foot complaints
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Plantar Fasciitis
Helps reduce pressure under the heel and supports the arch during daily activities.
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Supination/ High Arches
Improves pressure distribution and overall stability.
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Flat Feet/ Fallen Arches
Adds structured support when the arch needs reinforcement.
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Tired feet
Provides stable support during long days of standing or walking.
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Forefoot discomfort
Works with cushioning to help reduce pressure in the forefoot area.
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Long hours on your feet
Designed for everyday use and standing professions.
Compare with Other Insoles
Our insoles are available in 3 levels of support so you can customize to your needs.



