FSA / HSA Eligible
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6 Month Money-Back Guarantee Medical-Grade

Custom Orthotic Insoles - Bilt Labs
Custom Orthotic Insoles - Bilt Labs
Custom Orthotic Insoles - Bilt Labs
Custom Orthotic Insoles - Bilt Labs
Custom Orthotic Insoles - Bilt Labs
Custom Orthotic Insoles - Bilt Labs

Custom Orthotics & Insoles for Flat Feet & Fallen Arches – Medical Grade

Bilt Labs is Eligible
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  • Build Strength
  • Profile Design
  • Target Relief
Shell Setting
New Patient Offer

Was $285 Take $60.00 OFF Today!
(Code: Comfort is applied at checkout)

Dr. William Naughton
Dr. William Naughton, DPM
Board Certified Chief Medical Officer - NPI: 1245247089
Easy, At-Home Process and No Rx Needed
Includes Personalized Build Printout of your specific modifications.
Lifetime Shell Warranty and FSA/HSA Eligible
Priority Shipping and Made in USA
SAVE 50%+
Medical-Grade Orthotics Cost
$600 At A Clinic
$225 Bilt Labs Direct

Flat Feet Orthotics:

 

Ultimate Flat Feet Relief: Our therapeutic, custom orthotics are precision-engineered to stabilize fallen arches and eliminate instability common with overpronation. These are not simply generic insoles; each device is custom-made from a precise mold of your foot to provide crucial semi-rigid support that controls collapse and restores natural foot mechanics, and come with a Bilt labs warranty and guarantee.

Precision Correction 

The key to eliminating foot, ankle, and knee pain caused by flat feet is providing dynamic, rigid arch support to control excessive inward rolling. Our semi-rigid design offers robust hindfoot stabilization and prevents the midfoot from collapsing. By correcting overpronation, our custom orthotics enhance stability and relieve the widespread strain associated with fallen arches.

Unparalleled Performance

Built from your unique foot mold and detailed health information, we guarantee a truly precise fit that mass-produced supports cannot match. Choosing Bilt Labs is choosing a durable, evidence-based therapy that offers reliable support and improves gait alignment for long-term comfort and mobility. Backed by our lifetime shell warranty.

Back to overview for Flat Feet orthotics.

Choose Your Comfort Layer

  • Everyday (Memory Foam): Ideal for maximum cushion and all-day standing or walking.
  • Active (High Rebound): Engineered for high-performance use, providing superior shock absorption and energy return for fitness and long work shifts.

Proven Results

100,000+ Arches
Restored

Stop the pain caused by fallen arches. Our medical-grade custom orthotics provide the essential structural support needed to realign your feet and prevent overpronation.

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Save 50% vs. Traditional Clinics
BBB FSA Judge.me Optum

Easy, At-Home Process

No Rx Needed

FSA/HSA Eligible
USA Made
6-Month Guarantee
Understanding The Condition

What are Flat Feet?

The Pathomechanics of Overpronation

Flat Feet (Pes Planus) occur when the arches on the inside of your feet collapse, causing the entire sole to touch the floor when standing. This leads to excessive pronation, where the feet roll inward too far.

This inward rolling causes the lower leg (tibia) to rotate internally, putting massive strain on the ankles, knees, and lower back. It forces the muscles of the foot to work overtime to stabilize your body, leading to chronic fatigue and pain.

Common Symptoms:

  • Pain along the inner ankle (Posterior Tibial Tendon).
  • General foot fatigue and aching arches after standing.
  • Inner knee pain due to leg rotation.
  • Shin splints and lower back tightness.

Fast Facts

  • Prevalence: About 25% of adults have fallen arches.
  • Risk: Increases likelihood of plantar fasciitis and bunions.
  • Correction: Structural orthotics align the foot to neutral.

Recommended Solution:

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Background

Restoring Your Natural Arch

The Problem

Generic Insoles Collapse

Mass-produced insoles use soft materials that flatten under your body weight. They cannot prevent the arch collapse (overpronation) that causes your pain.

Result: Your arch continues to fall with every step.
The Bilt Solution

Structural Arch Support

We capture your optimal arch height in the foam mold. Your custom orthotic is laser-milled to maintain that exact shape, physically preventing the arch from collapsing.

Stabilize Heel
Lift Arch
Align Ankle

Why Choose Bilt Labs?

Traditional

Podiatrist

  • Cost $400 - $800+
  • Lifespan 1-2 Years
  • Visit Req. Yes
  • Support Corrective
  • Guarantee Rarely
BEST VALUE
The Smart Choice

Bilt Labs

  • Cost $225
  • Lifespan 2-3 Years
  • Visit Req. No (At Home)
  • Support Medical Grade
  • Guarantee 6 Months
Drugstore

OTC Insoles

  • Cost $20 - $60
  • Lifespan 3-6 Months
  • Visit Req. No
  • Support Minimal
  • Guarantee None
The Process

Clinical Relief from Home

Professional-grade orthotics without the doctor's visit. Here is how we do it:

Order Kit
1
Order Your Kit

Start with a free analysis and order your custom impression kit.

Mold Feet
2
Mold Your Feet

Use our custom kit to take a detailed mold of your feet at home and send it back to the lab.

We Build
3
We Build & Ship

Your custom insoles are approved by a DPM, precision-milled in the USA, and delivered to your home.

Medical Expertise

Elevate your foot health with Bilt Labs today.

Experience professional-grade biomechanical correction designed to meet your immediate pain relief and long-term structural health needs – accessible directly from home.

  • Board Certified Oversight

    Every pair is reviewed by experts, ensuring clinical accuracy.

  • 30+ Years Experience

    Dr. William Naughton, DPM brings decades of orthotics expertise.

  • Medical-Grade Materials

    We use the same high-performance polymers as top podiatry clinics.

Medical Expert
Verified Credential

License: DPM00321
NPI: 1245247089

Chief Medical Officer

Dr. William Naughton
Board Certified Podiatrist

Precision Engineered & Hand Finished—All In the USA

Aerospace-Grade Materials

We use high-performance polymers and EVA foams designed for maximum durability, shock absorption, and comfort.

Laser-Precision Milling

Your orthotics are carved from a solid block of material using CNC robotics, ensuring 100% accuracy to your foot mold.

Hand-Crafted Quality

Every pair is hand-finished and inspected by our technicians in our US-based lab to ensure clinical efficacy.

Designed For Your Specific Needs

Ready for Pain-Free Living?

Order your custom impression kit today and take the first step towards lasting relief.

Take Your Quiz

Frequently Asked Questions

Flat Feet Relief

Can custom orthotics and shoe inserts cure bunions?
Custom orthotics and shoe inserts cannot reverse a bunion deformity once the bone has shifted, as that is a structural change. However, custom insoles are highly effective at stopping the progression of the bunion and relieving pain by correcting the overpronation that causes the big toe joint to drift.
Will custom shoe inserts and orthotics fit in my shoes if I have a wide bunion?
Yes. One of the biggest issues with generic insoles is that they take up too much room in the toe box, crowding the bunion. Bilt Labs custom orthotics and shoe inserts are milled to be low-profile and typically stop just behind the metatarsal heads (3/4 length), leaving plenty of room for your toes and the bunion itself.
Do I need bunion surgery, or can custom orthotics and shoe inserts help?

Bunion surgery is often considered a last resort due to long recovery times. Most professionals recommend trying conservative treatment first. Custom shoe inserts and orthotics are the gold standard for conservative care because they address the root mechanical cause of the bunion, often providing enough foot pain relief to avoid or delay surgery.

Please note: You should always consult with a qualified healthcare professional or podiatrist to determine the best medical treatment plan for your specific condition.

Are custom orthotics better than bunion correctors or toe spacers?
Bunion correctors and toe spacers only address the symptom by temporarily pulling the toe straight, but they do not fix the underlying cause. Bilt Labs custom shoe inserts correct the poor foot mechanics (like flat feet or overpronation) that force the big toe joint out of alignment in the first place, providing long-term structural support and pain relief.
What are the best shoes to wear with custom orthotics for bunions?
The best shoes for bunions feature a wide, deep toe box made of flexible materials (like mesh or soft leather) that will not rub against the joint. When you pair a wide-toe shoe with Bilt Labs custom shoe inserts, you eliminate the mechanical pressure causing the bunion to grow, ensuring all-day comfort.

Product & Service

Are Bilt Labs shoe inserts and insoles truly medical-grade?
Yes. These are custom-fabricated from a physical mold of your foot using the same medical-grade polymers and EVA foams supplied to podiatry clinics. Each pair is reviewed for clinical accuracy to function as a true custom orthotic rather than a generic foam insole.
Do you take insurance or FSA/HSA for custom insoles?
We are approved to accept FSA/HSA cards directly at checkout for all custom orthotics and inserts. We do not bill insurance directly but provide a detailed invoice for reimbursement.
What is the warranty on custom shoe inserts?
Bilt Labs provides a lifetime warranty on the orthotic shell against breaking. We also offer a 6-month money-back guarantee with free adjustments.
How long does it take to receive my custom orthotics?
Once you place your order, we ship out your foot mold impression kit within 1-2 business days. After we receive your molds back at our lab, we design, build, and ship your custom insoles within 21 business days.
How long will my custom orthotics last?
Bilt Labs custom shoe inserts typically last a minimum of 2-3 years. The rigid shell itself often lasts longer (and has a lifetime warranty against breaking), but the soft top covers may show wear and can be refurbished.
What is your return/refund policy?
We offer a full 6-month trial period. If you are not fully happy with your custom insoles by that time, you can return them for a full refund. We also offer 2 free adjustments during this period to ensure the fit is perfect.
Where are my orthotics made?
Your new custom shoe inserts are made in the United States. We are located in the Houston, Texas area. All fabrications, designs, and finishing are performed by experts right here in our Houston lab.

See what our customers have to say.

  • 5 stars: 1274 (96%)
  • 4 stars: 51 (4%)
  • 3 stars: 3 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
R
Ryan (Kansas City, US)
Better Than $500 “Medical” Orthotics

I’m a mailman with extremely flat feet. After going through 3 pairs of custom orthotics from doctor’s offices - to the tune of $500 EACH - none of which ever truly felt comfortable, I needed to find a better solution.

My wife had tried Bilt Labs and was over the dang moon about her orthotics. I tried their 2-pair deal and got the exact same custom food casting mold I’d used in the doctor’s office. That’s when I realized, the doctor’s, tho good at their jobs, were just middlemen when it came to the orthotics.

I cut out the middlemen and got a quicker turnaround time and orthotics that actually feel good on my feet! The attached photo is just a little longer than 6 months into wearing them and taken after 10 hours of trudging through snow & ice delivering mail and heavy packages. They still look in great shape (the front big toe area of the right insole is starting to peel just a tiny bit but I’m honestly surprised this hasn’t happened sooner, with how much abuse these things go through).

K
Kim M.Q. (Sacramento, US)
Never want to be barefoot 🦶 again

Working in nursing 34 years, my feet
were so sore. I was told I needed Orthotics by my foot Dr later on. I found
this sight and was thrilled to see the nicest people

S
Soekanda J. (Philadelphia, US)
Outstanding insole

After almost 3 years searching and purchasing from various company/seller (including doctor’s recommendation), this seller is top AAA!! Taking my questions seriously and super smooth to deal with. I bought 3 pairs and feeling relieved from the product. Very recommend it!

c
cynthia k. (Waltham, US)

The inserts makes such a difference! Going to order a second pair

R
Rafael M. (Houston, US)
Instant relief

My wife gifted me the foot mold impression when my feet started hurting. I do have high arches, therefore I had to purchase work shoes/boots that accommodate my custom orthotics. It has been a great relief and pleasure to my high arches during my 10-14 hour work shifts!
Definitely recommend 👌🏼

C
Char (Lansing, US)
Great insoles!

Love these insoles! They are very comfortable and give me the extra support I need for my arthritic knees.

N
Nate (Dublin, IE)
Completely got rid of my planter fasciitis and

Completely got rid of my planter fasciitis and bone spur. Highly recommend!

J
Jdburns
I really appreciate the precision and the

I really appreciate the precision and the excellent customer service of Bilt labs orthotics. I was very hopeful it would solve my foot pain. However, mine turns out to be more structural and bone spurs and so they did not help. I do feel like if I didn't have the bone spurs, they would be excellent. Laura was the customer service representative that made it easy to get a refund.

A
Anonymous (Las Vegas, US)
I bought custom insoles from a local store that

I bought custom insoles from a local store that uses laser measurements. And they are no comparison to Bilt labs insoles!

B
Blair S. (Kennebunk, US)
Simply the Best Inserts by Far!!!

After trying numerous over the counter varieties and then going to a podiatrist for custom made (cost >$450 and had to go back twice; they still didn’t work), I tried Bilt Labs. The staff is exceptional and caring!!!

When they arrived and first used them my feet felt fantastic instantly. I went from having severe pain just walking short distances to immediately being able to run around in them!! Prior to receiving these I had given up being able to play tennis for nearly 18 months because I could only play a few games before I had to quit playing.

These inserts were live changing for me. I could now play competitively for an hour. However, after an hour of playing I started to notice some minor discomfort in my right foot. At first I ignored it. Then I decided to call BILT LABS.

The associate I spoke with asked me several questions about where the pain was on my foot and told me they would make a minor adjustment to my insole. They sent me a new right insole. It worked perfectly and I was able to play for hours without any discomfort. When I called Bilt back and told them, they sent me replacements for the right insert for the other pairs I had purchased.

Sine then I have purchased other pairs so I don’t have to keep moving them from shoe to shoe.

Thus far I have been using them for about two years. They are still working great.

I am very happy with Bilt Labs and Highly Recommend their product!!

A
Anonymous (Saint Paul, US)
Best in service and quality for orthotic

Best in service and quality for orthotic inserts

A
Anonymous (Saint Paul, US)
My orthotics are functional, durable, and as

My orthotics are functional, durable, and close to perfect for me! The staff assisting me was knowledgeable, thoughtful, and simply the best.

L
Lala (Roanoke, US)
HONEST Company!

I am SO impressed with Bilt labs. I have a rare decease called Charcot foot where, Bones break down in the feet and can come through your feet. Also, I’ve suffered with neuropathy for 28 Years. My condition is so bad the Bil labs contacted me to tell me the orthotics would not be a good match for me. They could have cared lesss and sent them to me. But, they were honest and called me personally and explained why they would be more damage then good and I needed to stick with my RX orthotics here in my city. Honesty is something that many people lack. I’m so impressed. They gave me a complete refund. They didn’t charge me for the mold kit. If you’re thinking about using them think no more!

B
Bart C. (Salt Lake City, US)
5 star experience

Laura, was so very courteous and completely helpful. As with everyone I speak with at Bilt Labs I am now getting my 4th pair. I love the products and your customer service.

R
Ralph H. (Warren, US)
Nice custom inserts

I have been using them for about a month and decided to order another set. They work better than generic insoles. My feet already are doing better....

J
Jeff E. (Altoona, US)
Customer Service/Product

I run a company and the woman in customer service was outstanding! She was knowledgeable, helpful and beyond what I had expected. The insoles are the best I’ve ever had. I played basketball overseas and I can tell you I tried dozens of high-quality orthotics. These by far help my feet pain more than any other brand that I have tried in the past. Are they expensive yes, are they worth it yes. My experience with this company is a perfect 10.

D
Don B. (New York, US)
Excellent

After buying “custom insoles” online, seeing a Podiatrist and exploring The GFS retail insoles, I came across Bilt Labs. The ordering process is easy, you step into a mold with both feet and give them some information. Days later, after lots of updates, you receive your insoles. They are an exact fit to your feet, not a one size fits most. No microwaves, ovens or changing insoles throughout the day.
The feeling of an exact fit is comforting! You should try Bilt Labs.

T
Tim D. (Smithville, US)
These inserts have changed my life. Drastically reduced knee and ankle pain.

These inserts have changed my life. Drastically reduced knee and ankle pain

S
Steve M. (Malvern, US)
Excellent customer support

I had a question and needed some help with a pair of orthotics that I had recently ordered, so I sent my question via email. Within a couple of hours I got a thoughtful and helpful reply, even offering to go above and beyond what I expected. These folks are top notch! I highly recommend them in all regards.

W
Wayne M. (Rockwall, US)
New Customer

So far so good. They fit all my shoes and provide relief and comfort. I've had them for 2 weeks now and they seem durable

B
Bart C.
5 star experience

I love these orthotics so very much I have 3 sets and just ordered a sry gor my cowboy boots. Their happy foot guarantee is awesome snd Bilt labs customer service is one of the very best I have ever worked with.
Thank you all!!+

E
Elliot D.M. (Chagrin Falls, US)
Helped my pain

I’m a family doctor and was having daily pain when walking over 30 minutes. I tried lots of insoles and supports but bilt labs solved my problem completely. Now I wear them in my work shoes and my walking shoes. They are great!

K
Kristen (Chicago, US)

Great help for my feet.

R
Ron (Vienna, US)
Great compliment

I previously wrote a review on how much I liked my insoles and how nice it was to deal with this company but because of this I decided to write an additional one. I recently had to see my physician who specializes in foot and ankle problems. I was wearing my orthotics and after looking at them he remarked that they were extremely well made. I thought I would pass that along.

P
Pam C. (Miami, US)
Happy Feet no

Unbelievable how much these orthotics help my foot pain. Highly recommend spending the money!!

D
Dave F. (Bonney Lake, US)
New life for a 75yr old!

Due to the pain in my feet I had basically become inactive. For 5 years I went doctors, did rehab exercises, read everything I could find about foot pain. Started using shoe inserts, adding pads to different positions on the inserts. It did make a difference but far from completely fixing the pain. Found Biltlabs, researched them and gave it a shot. Very Happy! No pain! Walked over 18 miles while in Chicago over 3-days. I couldn’t walk over 3 blocks without one foot or the other giving out. If everyone gets the results I got… incredible! Life changing! Highly recommend!!!