Run Insoles
Run Insoles
Next-Generation Support for Every Stride.
A new era of performance starts underfoot.
The all-new Run Insole is built from the ground up with nitrogen-infused supercritical foam that propels every stride forward — our lightest, most responsive design yet. A precision heel plug absorbs shock on impact, while a reengineered arch and top cover evenly distribute weight for smoother transitions and lasting comfort. The result: less fatigue, more power, and the first step in Tread Labs’ next-generation insole line.
Specs
Specs
Shipping
Shipping
The Netherlands, Belgium & Germany - Everything we sell ships for free. Simple as that. Transit time is typically 2-3 business days.
Denmark, France, Luxemburg & Austria - The shipping costs are € 4,95. We ship our products from The Netherlands with GLS. Transit time is typically 2-4 business days.
Hungary, Italy, Poland, Czech Republic - The shipping costs are € 7,95. We ship our products from The Netherlands with GLS. Transit time is typically 2-4 business days.
Bulgaria, Estonia, Finland, Ireland, Croatia, Latvia, Portugal, Romania, Slovenia, Spain & Sweden - The shipping costs are € 13,95. We ship our products from The Netherlands with GLS. Transit time is typically 2-5 business days.
Greece - The shipping costs are € 19,95. We ship our products from The Netherlands with GLS. Transit time is typically 4-5 business days.
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.
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 Makes Run Insoles Better
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One size does not fit all.
Run insoles come in four arch heights – low, medium, high, or extra high – so you can get the perfect fit for your feet.
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Like new, on demand.
Tread Labs insoles are made with a 2-part system: an arch support and a replaceable top cover. Easily replace the top cover to make your insoles like new again.
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Guaranteed to last.
Our molded arch supports are built to last a million miles. If they ever break or lose their shape, we'll send you a new pair. No questions asked.
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Built on breakthrough foam.
Nitrogen-infused supercritical foam delivers high-rebound cushioning that outlasts ordinary materials — comfort that keeps performing.
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Together, They Rip.
Shoes protect. The Run Insole powers. Together, they deliver stride-correcting alignment, explosive energy return, and comfort that doesn’t quit. Less wasted motion. Less fatigue. More speed, more endurance, more PRs. This is running unlocked.
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The Fix Your Shoes Missed.
Running shoes come and go. The Run Insole stays. Built with recyclable polypropylene, nitrogen-infused supercritical foam, and our Million Mile Guarantee, it’s the upgrade that stays with you run after run, changing how you train, race, and recover. One upgrade. Infinite miles.
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Master Your Stride. Or Get Left.
Every stride starts with your foundation. The Run Insole stabilizes your arch, reduces joint stress, and improves running mechanics. Stronger form means more efficiency, fewer injuries, and faster recovery. Better form. Stronger runs. Fewer setbacks.
Fit It. Forget It. Fly.
No two runners are the same and neither are their arches. With four arch heights and 11 size options, the Run Insole dials in a custom fit your shoes can’t. The result: more stability, less slippage, and a stride that feels built just for you.
Engineered Where It Matters Most.
Impact begins at the heel — so we rebuilt it. The Run Insole’s precision heel plug absorbs shock, improves alignment, and helps you stay powerful through every stride. It’s a small detail with big results.
Stronger Stride. Fewer Setbacks.
Every misaligned step steals energy and increases risk. The Run Insole stabilizes from the ground up: aligning joints, improving form, and protecting against the injuries that cut training short. Run longer. Finish faster. Recover Stronger.
Compare with Other Insoles
Our insoles are available in 3 levels of support so you can customize to your needs.
