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Dash Insole Kit

For all shoe types

Fitting Guide
Regular price $ 125.00
Regular price Sale price $ 125.00
Sale Sold out

Up your game by optimizing your biomechanics with ultra-firm support.

Athletes who want to boost their performance, people with especially flat feet, and those who overpower most insoles all have one thing in common. They need ultra firm support. Dash Insole Kit has you covered…in every shoe. The super thin, ultra lightweight, nearly rigid 100% carbon fiber arch supports improve biomechanics and stability while decreasing injury risk. Dash Insole Kit includes 1 pair of ultra firm arch supports and 3 styles of swappable top covers – 5mm thick full length, 3mm thick full length, and 3mm thick short – for a perfect fit in all your low-heeled footwear.

Million Mile Guarantee

Tread Labs molded arch supports are unconditionally guaranteed. Forever.

If they ever crack or lose their shape, we’ll send you a new pair, no questions asked. From your first mile to your millionth, your satisfaction is our priority.


Before adding Dash Insole Kit to your shoes, remove the factory inserts. While adjusting to your insoles, you may feel firm support along your arch, but after a week or so, you’ll probably forget you’re wearing them. Give yourself time to get used to the additional support. You’ll be glad you did.


We offer free shipping via USPS within the US. Transit time is 4-5 business days.

Shipping to Canada is $10 with a transit time of 5-7 business days.

International shipping costs $25 for 1-2 pairs and $40 for 3-5 pairs. All duties, taxes and fees are paid by the customer.

We ship Monday-Friday, excluding holidays.

  • One size does not fit all.

    Pant's aren't one size fits all. Insoles shouldn't be either. Dash insoles come in four arch heights – low, medium, high, and extra high – so you can get the perfect fit for your feet.

  • Like new, on demand.

    Tread Labs insoles are made with a 2-part system: a molded arch support and a replaceable top cover. Easily replace the top cover to make your insoles like new again.

  • Fresher feet with every step.

    Dash top covers are resilient, long-lasting, open-cell polyurethane foam topped with 100% recycled polyester fabric that's PURE antimicrobial treated to keep feet feeling fresh all day.

Up Your Game

When it comes to competing, you’re not going for second place. The right gear is your performance enhancer on the field or in the saddle. Carbon fiber makes Dash insoles light, low-profile and nearly rigid, lengthening your stride and improving your alignment.

You'll be more efficient with super-thin, lightweight arch support in your sport shoes. That's one for the win column.

Woman cyclist riding a road bike

No Risk, High Reward

Getting used to firm support can take time. That's why our insoles are covered by a 90-Day Fit Guarantee. Once they arrive, wear them for up to 90 days. Make sure they fit like a glove.

Need a higher or lower arch? Exchange them. Just not your cup of tea? That's okay. Send them back for a refund. We'll even pay return shipping (in the US). It doesn't get less risky than that.

How Firm Do You Like It?

Just like a mattress, insoles come in different levels of firmness. Choose from firm, extra firm, and ultra firm. Picking the one that's perfect for you is easy with our Find Your Fit Tool.

Customer Reviews

Based on 30 reviews
Derek N (Seattle, United States)
Great support, few issues

My partner and I each got a kit, on average we spend roughly 50-60% of our standing time in shoes. Saw a previous inquiry about waterproof top soles, we really hope for that by the time they need to be replace.

*The bad:
-Bottom of insole is sleek so it slides around in our shoes (granted we wear wide shoes). I added a thin rubber layer between the insole and our shoes and it significantly reduced the sliding/shifting behavior.
-Top layer is spongey material. I'd expect issues in high humidity environments, if one has sweaty feet, or if one gets water in their shoe in some way (like accidentally stepping in a river). I haven't tested drying times but I'd expect the greater part of a day minimum anywhere that isn't a warm desert.

*The good:
-Excellent support
-Feet feel great, even when not wearing shoes my feet feel better than before getting these.

Christopher L.
Exactly What I Was Hoping For

I purchased the Dash High insoles to use in my snowboarding boots and these insoles made a world of difference. The sizing and arch height were very accurate and I was finally able to snowboard for an entire day without my feet killing me after a few hours. Definitely worth it!

Hey Christopher,
Thanks so much for sharing your review! It's so great to hear that Dash have helped you get more runs out of your lift pass. Enjoy your winter on the mountains.

Jonathan Woods (Long Beach, United States)
Best insoles !

Best and sturdiest insole on the market. No more ankle pain!

Abisai Fuentes (San Antonio, United States)
so Far so good

I learned I had flat feet during my physical examination before joining the Military. I guess I had never experienced issues even though I was an avid runner in high school and the military. I began to buy insoles even the Doctor Scholls 15 yrs later I'm starting to play soccer and noticed pain on my soles and decided to purchase another set of insoles and I happened to run into Tread Labs. I did noticed instant relief when I wore them the first time, and after testing them while playing soccer I have to say that I'm impressed. I also loved the fact that the arches are interchangeable with other insoles to accommodate different shoe insole needs. I hope they will last for years to come since they are made out of carbon fiber with a million miles guarantee.

Regina Reale (Tacoma, United States)
Dash inserts have great support

Great price on 3 piece dash inserts with thin, regular and dress shoe topper plus arch support. I can buy more variety of shoes now that I have these instead or my Dr perscribed orthotics. Thank you

Hi Regina,
The Kit is a fantastic way to add comfort and support to a wide variety of shoe styles. They certainly are a great alternative to custom orthotics.