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Carbon Fiber Insoles
Carbon Fiber Insoles
Maximum Support for Precision Performance
New for 2026: Designed for high-load activities.
Ultra-firm support for plantar fasciitis, overpronation, and other foot pain. Built with a lightweight carbon fiber plate for maximum stability and control. Everything you love about Dash, now upgraded with a Precision Heel Cushion for added comfort and moisture-resistant top cover.
Available in four arch heights for a precise fit, with replaceable top covers to extend the life of your insoles, forever.
Please note: The thin, rigid carbon fiber plate may cause increased wear to the interior lining of some shoes over time.
90-day Returns
HSA/FSA Eligible
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Firmness |
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Arch Support Material |
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Available Arch Heights |
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Top Cover Thickness |
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Met Pad Compatible |
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Million Mile Guarantee |
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Fitting Guide
Order insoles in the same size as the shoes they will go in. Print out our guide.
- Arch Height Guide
- Insole Measurements
- Short Insole Measurements
- Wide Insoles Measurements
- Size Conversions
Arch Height
Choose between low, medium, high and extra high arch heights by comparing your wet footprint.
| Your Wet Footprint | Describe Your Arch | Arch 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 |
Regular Insoles
Applies to Pace Insoles, Ramble Insoles, and Dash Insoles.
Imperial Measurements

Metric Measurements

Short Insoles
Applies to Pace Short Insoles, Ramble Short Insoles, and Dash Short Insoles.
Imperial Measurements

Metric Measurements

Wide Insoles
Applies to Pace Wide Insoles.
Imperial Measurements

Metric Measurements

Insole Size Conversions
| Tread Labs Size | United Kingdom | European | Japan/China |
|---|---|---|---|
| Men 4-4.5 Women 5-5.5 |
3-3.5 | 35-35.5 | 22.5-23 |
| Men 5-5.5 Women 6-6.5 |
4-4.5 | 36-37 | 23.5-23.5 |
| Men 6-6.5 Women 7-7.5 |
5-5.5 | 38-38.5 | 24-24.5 |
| Men 7-7.5 Women 8-8.5 |
6-6.5 | 39-39.5 | 25-25.5 |
| Men 8-8.5 Women 9-9.5 |
7-7.5 | 40-41 | 26-26.5 |
| Men 9-9.5 Women 10-10.5 |
8-8.5 | 41.5-42 | 27-27.5 |
| Men 10-10.5 Women 11-11.5 |
9-9.5 | 42.5-43.5 | 28-28.5 |
| Men 11-11.5 Women 12-12.5 |
10-10.5 | 44-44.5 | 29-29.5 |
| Men 12-12.5 | 11-11.5 | 45-46 | 30-30.5 |
| Men 13-13.5 | 12-12.5 | 46.5-47 | 31-31.5 |
Arch Height Guide
The "Wet Foot" Test
Instructions: 1. Get your feet wet; 2. Step onto a piece of cardboard; 3. Compare your footprint to the options below.
| Footprint | Arch Height | Description |
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Low | My arch is mostly flat to the ground when I stand. |
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Medium (Most common) |
My arch is partially off the ground when I stand. |
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High |
My arch is high off the ground when I stand. |
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Extra High | My arch barely touches the ground when I stand. |
Between arch heights?
Start with the lower arch height and see how it feels. If you need more support, our easy exchange process makes it simple to try a higher arch height.
What Makes Tread Labs Insoles Better
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Four Arch Heights
Low, medium, high, and extra high. Support that matches the natural shape of your foot.
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Firm Arch Support
Clinical-grade arch support designed to hold its shape and provide consistent stability step after step.
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Precision Heel Cushion
Targeted heel cushioning softens and reduces harsh impact where your foot takes the most load, without compromising support.
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APMA Approved
Carbon Fiber Insoles have been granted the American Podiatric Medical Association's Seal of Acceptance.

The Support of Custom Orthotics, Simplified.
We support all 26 bones and 33 joints in the human foot with our 26-33 ARCHitecture—the technology behind our semi-custom orthotics. With 4 arch heights to choose from, you get personalized support without the hassle or cost of custom orthotics.
Perfect for Common Foot Conditions
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Plantar Fasciitis
⭐⭐⭐⭐⭐
"I bought these for plantar fasciitis relief and found it almost immediately."
- Matthew M, Verified Buyer
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Supination & High Arches
⭐⭐⭐⭐⭐
"I’ve tried other insoles to help with my high arches but none have been as impactful."
- Chad P, Verified Buyer
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Flat Feet & Fallen Arches
⭐⭐⭐⭐⭐
"I have flat feet and these are the only insoles that work! Love them!"
- Shannon H, Verified Buyer
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Morton's Toe
⭐⭐⭐⭐⭐
"Has worked much better for my Morton's neuroma pain than custom orthotics from podiatrist"
- Patrick K, Verified Buyer
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Tendonitis
⭐⭐⭐⭐⭐
"Great support for my Achilles Tendinosis."
- Eileen K, Verified Buyer
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Metatarsalgia
⭐⭐⭐⭐⭐
"I have high arches and metatarsalgia, and Pace (with a met pad) is the only insole I've found that relieves the pain."
- Melissa U, Verified Buyer
Compare with Other Insoles
Our insoles are available in 3 levels of support so you can customize to your needs.
Carbon Fiber Insoles$ 125 | Pace 2 Insoles$ 80 | Run Insoles$ 85 | Ramble Insoles$ 65 | |
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Best For |
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Fits In |
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Firmness |
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Arch Support Material |
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Available Arch Heights |
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Top Cover Thickness |
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Met Pad Compatible |
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Million Mile Guarantee |
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