Side view of custom orthotic insole with vegan leather top cover and yellow memory foam cushioning for foot pain relief
Custom Bilt Labs insole with vegan leather top cover and high rebound cushioning for foot pain relief
Man standing barefoot on Bilt Labs custom insole box in home, targeting foot pain relief for conditions like flat feet and plantar fasciitis
custom insole with labeled benefits features on a gray background orthotics
Person inserting custom Bilt Labs orthotic insole into brown leather shoe for foot pain relief
Brown leather shoe cutaway showing custom orthotic insole for flat feet and heel pain relief by Bilt Labs
3D model design of feet with measurement labels on a gray background for orthotics and custom insoles

Orthotic Insoles for Flat Feet (Fallen Arches) – Custom Alignment

Bilt Labs is Eligible
31,500 Analyzed
Targeted Correction

Select Your Pain Select Your Pain or Condition

Medically Engineered to treat the following:

Heel Pain Plantar Fasciitis
Arch Pain Flat Feet / High Arches
Alignment Overpronation • Supination
Ball of Foot Metatarsalgia
Burning / Tingling Morton's Neuroma
Big Toe Bunions
Achilles Tendonitis
Complex Multiple Issues
Heel Spurs Bone Spurs
View More Conditions
Disclaimer: This tool is for informational purposes only and is not a replacement for professional medical advice, diagnosis, or treatment. We are not diagnosing your condition. Always consult a healthcare provider for medical concerns.
Step 2: Severity Check

Analyzing Symptoms

(Select all that apply)

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Daily mold capacity is 88% Full. Order your kit today. The sooner your mold returns, the sooner production begins.
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Medical-Grade Orthotics Cost
$600 At A Clinic
$249 Bilt Labs Direct
6-Month Fit
Guarantee
2 Free
Adjustments
FSA / HSA
Approved

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.

Clinically Proven
6-Month Guarantee
Made in the USA
Order Your Custom Mold
Save 50% vs. Traditional Clinics
BBB FSA Judge.me

Accreditations & Partners

BBB A+ Rating FSA Store Eligible Judge.me Verified Optum
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:

Get Custom Support

Why Orthotics Are The Primary Treatment

The goal of treatment is to Restore Alignment.

You cannot build an arch with exercise alone. Custom orthotics provide a firm physical platform that holds the foot in a neutral position. By preventing the arch from collapsing with every step, we stop the chain reaction of pain traveling up the leg.

Board Certified Expertise

Dr. William Naughton
Dr. William Naughton
DPM • Chief Medical Officer

"No two feet are alike, so why settle for generic support? Treating serious foot pain with a drugstore insole is like trying to fix your vision with someone else's glasses. Bilt Labs delivers the specific biomechanical correction your unique foot structure requires."

NPI: 1245247089
License: DPM00321
Board Certified Podiatrist
20+ Years Clinical Experience
View Full Bio & Credentials
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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.

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 $249
  • Lifespan 2-3 Years
  • Visit Req. No (At Home)
  • Support Corrective
  • Guarantee 6 Months
Order Your Custom Mold
Drugstore

OTC Insoles

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

Laser-Precision Manufacturing

Your orthotics aren't pulled off a shelf. They are milled from a solid block of medical-grade polymer using robotic CNC technology right here in the USA.

Sub-millimeter accuracy to your foot mold
Hand-finished by expert technicians
Made in the USA
Inside Our Lab

Ready for Pain-Free Living?

Don't wait another day in pain. Order your custom impression kit now and take the first step towards lasting relief.

Order Your Custom Mold
6-Month Guarantee Free Shipping Made in USA

Frequently Asked Questions

Flat Feet Relief

Can orthotics fix flat feet?
Orthotics cannot permanently change the bone structure of an adult foot, but they functionally correct the issue while worn. By holding your foot in a neutral, aligned position, they prevent the arch collapse and strain on your tendons, effectively eliminating the symptoms and preventing progression.
Do I need firm or soft support for flat feet?
Flat feet require firm, semi-rigid support. Soft drugstore insoles will simply collapse under the weight of your falling arch, offering no real correction. You need a material that is strong enough to hold your arch up, which is why we use medical-grade polymers.
Will these fit in my shoes if I have flat feet?
Yes. Our custom orthotics are milled to your exact foot profile. Because they are custom-made (not generic bulky foam), they have a low profile that fits easily into sneakers, work boots, and casual shoes while providing the necessary arch lift.

Product & Service

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 orthotics within 21 business days.
Are these truly custom, medical-grade orthotics?
Yes. These are not "heat-moldable" or "shelf" insoles. They are custom-fabricated from a physical mold of your foot using the same medical-grade polymers and EVA foams we supply to podiatry clinics. Nothing is pre-made or off-the-shelf.
Do you take insurance or FSA/HSA?
We are approved and set up to accept insurance FSA/HSA cards directly at checkout. We can also send a detailed invoice for reimbursement. However, we do not bill insurance companies directly as that typically requires an in-person office visit.
How long will my custom orthotics last?
Bilt Labs custom orthotics typically last a minimum of 2-3 years. The orthotic shell itself often lasts longer (and has a lifetime warranty against breaking), but the 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 orthotics 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 orthotics 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.
What is your warranty/guarantee policy?
Your orthotics include a Lifetime Warranty on the plastic orthotic shell against breaking or cracking. This does not include the top cover material, as that is a consumable item that naturally wears with use.

See what our customers have to say.

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